2. Main Topics
2-1. Metal foams (Main journal)
2-1-1. Principle
“Developed a theoretical model to evaluate the overall heat transfer coefficient, considering both conduction through the solid and heat exchange from the solid surface to the gas.”
An accurate determination of the geometrical parameters of the foam was considering the difference in the pore size and the measured value res
Objection
Metals, ceramics, polymers that represent material engineering can find easily in our real life. Compare corrosion degree in case of uncovered in same corrosion environment and corrosion difference inquires happened reason.
Consider how take advantage of Material in state that is more better in our real life.
TheoryA
kind of the corrosion
- General Corrosion
- Galva
Tires are round-shape object surrounded with wheels that are made of metal connected with axle of cars so that car’s tires don’t wear
Because tires reach ground for driving and support car’s weight, It plays a role like man’ shoes
Therefore we need to concern considerably and manage tires cotinuously
Tires conduct the following four important function
First, Function of conveying driv
on molecules by either
Action on the molecule themselves
Or through “handles” such as glass beads, polystyrene beads or metallic particles attached to molecules.
exerts forces on objects through the transfer of momentum from the fluid to the object
Advatages
Liquids surrounding the tethered macromolecule can be easily replaced.
Flow can be used to introduce new beads or biomolecules
Objective
Purpose of this experiment
Understand the seperation principle of chromatography and identify the metal ions in mixture using paper chromatography
Principle of Chromatography
The stationary phase
Liquid or Solid used in absorbent in chromatography
The mobile phase
Liquid or gas moving through the stationary phase in chromatography