gases such as carbon dioxide. Other methods that not only help to preserve food, but also add flavor, include pickling, salting, smoking, preserving in syrup or alcohol, sugar crystallization and curing.
As the preceding paragraphs say, many kinds of food preservation technologies are around for preventing foods from the undesirable results. Specifically this report deals with the methods that i
Low carbon green growth policy
The current Korean government policy states to reduce green house gases and pollution and create a sustainable growth. Describing in detail, it aims to increase new energy sources from current 2% to 11% by year 2030; moreover, it aims to double the investment on green energy R&D. The government also mentions that it will support production of eco-friendly cars, a
Figure 13 shows that cryo pump is cooling pump. It means this pump is cooling, liquefaction and store air, not pumping. Generally, it has 3 processes like condensation, absorption and trap at low temperature. The cooled air or molecules do not have any momentum so it is no possibility to heat any molecules. It means vacuum.
Cryo pump have High emission velocity and high emission capacity so it
hazard.
2. Class 2 - Gases
(DIV 2.1 Flammable gas. / 2.2 Non Flammable, non-toxic gas / 2.3 Toxic gas)
3. Class 3 - Flammable Liquids (불에 잘 붙는 페인트, Thinner 등)
4. Class 4 - Flammable Solids
(DIV 4.1 가연성 고체, 4.2 연소되기 쉬운 물질, 4.3 물에 접촉 시, 가연성 가스를 방출)
5. Class 5 - Oxidizing Substances and Organic Peroxide
Change of conductivity being
normal state and gas detecting in sno2 grain boundary
Amount of desorption and absorption of oxide and free electron
can control sensor sensitivity
Electrode and the electrolyte solution while maintaining a constant current from the direct oxidation and reduction when measuring current to detect the gas.
Cause ionization of the electrolyte solution, the