A partially ionized gas created by application of an electric field. Positive ion/electron pairs are created by ionization reactions, maintaining overall charge neutral.
Commonly, radio-frequency (RF) at 13.56 MHz is used to create the glow discharge.
Typical pressures are between 1 mtorr and 5 torr.
Effective method for modifying surface property of a material little effect on bulk pro
Ⅰ.Outline
1. Definition of Learning disability
The term "Learning Disabilities" usually refers to developmental problems in reading, writing, and arithmetic ―the "three Rs" of the classroom that are essential to learning as well as to everyday functioning.
2. Epidemiology
Prevalence of learning disabilities ranges from 2~10 percent of U.S. school children, with rates for b
Ⅰ.Outline
1. Definition of Learning disability
The term "Learning Disabilities" usually refers to developmental problems in reading, writing, and arithmetic ―the "three Rs" of the classroom that are essential to learning as well as to everyday functioning.
2. Epidemiology
Prevalence of learning disabilities ranges from 2~10 percent of U.S. school children, with rates for b
Grit chamber
Definition
Remove the grit and inorganic matter over 0.2mm in waste water
[ Function ]
Prevent abrasiona and damage of machine equipment
Prevent Piping system blockage
Prevent adverse effect by deposits
Gravity type chamber
Using the gravity and velocity of waste water
Take the deposits to sludge facility, using sand pump
Aeration type chamber
Using centri
4. Bradford Assay
- Bradford Reagent는 95% ethanol, 88% phosphoric acid, Brilliant Blue G로 이루어져 있다. Ethanol은 유기용매이기 때문에 coomassie blue를 Bradford reagent 내에 잘 용해 시키고, phosphoric acid는 reagent가 산성 조건을 충족시키게 한다. 산성 조건 하에서 Coomassie blue는 doubly-protonated red form이 되기 때문에 6개의 phenyl grou