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B9902051 作業一
1. 機電系四A
B9902051
英文閱讀與寫作(作業1)
Hello teacher, I was four-year electromechanical system
I called Huajian Cai
I want to introduce an experiment on our system
Four experiments made me the most profound is the thermostat mapping experiments
its principle is very simple, almost confined space in a light bulb and fan placement,
placed between the lamp and the fan temperature Sensor , the temperature is too
high, turn off the lamp and start the wind scattered, in order to achieve the cooling
effect, the temperature is too low to turn off the fan and open the bulb, with air
conditioning principle is the same
2. Hydrophilic surface
• Hydrophilic refers to molecules
capable of forming a temporary
physical properties and hydrogen
bonding of water molecules through.
•
A hydrophilic molecule, or that the
hydrophilic portion of the molecule,
refers to its ability to form hydrogen
bonds to the polarized portion and to
the oil or other hydrophobic solution,
the more easily dissolved in the water.
•
Hydrophilic and hydrophobic
molecules can be referred to polar
and non-polar molecules.