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Basic Knowledge Basic Knowledge
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2019/07/19
Thermal Resistance, Thermal Conduction, Thermal Conductance, Heat Transfer Resistance
Basic Knowledge
Thermal Resistance, Thermal Conduction, Thermal Conductance, Heat Transfer Resistance
Thermal Resistanceis aheatproperty and a measurement of a temperature difference by whic…
2019/06/29
Classification of Vacuum Level
Basic Knowledge
Classification of Vacuum Level
The so-called “vacuum” refers to a gaseous state where the pressure in a given space is…
2019/06/28
Thermal transmittance and Thermal Conductivity
Basic Knowledge
Thermal transmittance and Thermal Conductivity
Thermal transmittance(known as “U value”), refers to the amount of heat passing throug…
2019/06/13
What is Vacuum?
Basic Knowledge
What is Vacuum?
A vacuum is a physical space with no or very little gas molecules and atoms in it. It is…
2019/05/15
Units in Vacuum Measurements
Basic Knowledge
Units in Vacuum Measurements
The most commonly used unit in vacuum measurements is Pa. 1Pa is equal to 1N/m2. The …
2019/05/09
Early History of Vacuum Technology
Basic Knowledge
Early History of Vacuum Technology
In 1643, an Italian physicist Torricelli proved the presence of vacuum and atmosphere p…
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