1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
1 GPa
Elastic modulus Nanoindentation > 6 GPa
Adhesion Tape pull, modified-edge lift-off Delamination-free
Disavantages
Weakens mechanical properties
Lower thermal conductivity
Narrow pore distribution to ensure dielectric constant is homogeneous and isotropic
Pores need to be closed cells to prevent crack propagation and moisture absorption
Need to add silica to seal surface pores
2. Important Characteristics of TiO2
(1) Photocatalystic Character
- If the light energy is irrigated at TiO2, the catalyst which absorbed the light energy will activate so it oxidize and restore aspirates.
(2) Characteristic of Ultra-hydrophile
- Ultra-hydrophile is the status that befit with the surface of the material such as glass.
For many of Materials, if we drop water, it ma
of differences in diffusion rates.
These are arising from differences in molecular size and solubility.
This means that the resistance increases with increasing molecular weight.
The solutes separate by passing through the membrane that
behaves like a fibre filter and separation occurs by a sieving
action based on the pore diameter and particle size
(i.e. smaller molecules will diffus
electricity and heat as long as fuel and an oxidizer are supplied.
Fuel cell construction generally consists of a fuel electrode (anode) and an oxidant electrode (cathode), and they are separated by an ion-conducting membrane. Oxygen passes over one electrode, and hydrogen over the other, and it generates electricity, water and heat. Fuel cells chemically combine the molecules of a fuel and o
water because it can dissolve even in cold water. (Actz made from grapefruit, citron and eucalyptus has good solubility.) This saves 1070W in each household and on aggregate it can save 3.5billion KW ofelectricity each year in Korea. It can decrease carbon dioxide emissions. For these reasons, Pigeon won another prize in ‘Ethical Management Award(윤리경영대상)’ hosted by ‘New Industr
conductive bipolar flow plates
cell plate coatings
Polymer behave like molecular sieves in the solid state
Internal surface area is wide
Pore size can be controlled up to nano-scale
Organic polymer is good one to be PIMs
Operate at very low temperature
High efficiency of a PEM ; 40 to 60 percent
Compact and light units (Small volume)
Solid electrolyte ; easier and cheaper
pore region
A large amount of amine-type CO2 capturing agent into its mesopores in a well dispersed manner
Synthesis of MA
PEI impregnation on MA
Amine grafting on MCM-41
Characterization of the materials prepared
CO2 adsorption-desorption measurement
Al(i-PrO)3 (41.68g)+ Alcohol solvent
(EtOH 73.6g + isopropanol 72.2g) at 50oC
Distilled water (7.2g) – promote hyd
of its business activities, from its operations to the design and use of its technology.
5.1billion
kWh ofelectricity was saved as a result of IBM’s annual energy conservation projects between 1990 and 2009.
3.4million
Metric tons of CO2 emissions were avoided as a result, an amount equal to:
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