1. Experiment Date & Time
Making a pre-report : 2009. 10. 27. ( 8p.m. ~ 12p.m. )
Do experiment : 2009. 10. 28. 6PM ~ 6AM
1) Measurement Focal length of Convex lens
- Parallel light law
- Auto collimation law
- Measurement law using collimator
- Measurement focal length by thin lens equation
- Measurement focal length using magnifi
idea behind the sonic resonance test method can be explained using the equation by which one can measure the propagating speed of flexural sonic wave through a medium
(1)
where v is the propagating speed of the flexural wave on a string, F is the tension applied to both sides of the string, P is the mass per unit length of the string.
Some methmatical manipulation of Eq (1) yields
1. Plot the 1-D temperature profile with analytical solution
(temperature vs fin length)
1) Analytical Solution
Fin의 미소면적에 대해 대류에 의한 열의 손실을 고려하여 열전달식을 세워 보면,
---------- (1)
한편 미소변화량은 다음과 같이 나타낼 수 있다.
---------- (2)
(1), (2)에서
Idealizing his/her partner
Exaggerating partner's virtue and explaining away their flaws
This behavior, often observed between newly smitten lovers, is called
"pink lens effect"
To grasp neuroscientific explanation
To see how far this effect can affect
our way of thinking
……And we just had to know
……And we just had to know
Changes in our brain when we encounter a
II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water