Structure
pore forming toxin 과 amino acid sequence 가 유사하다.
S.aureus toxin , S.aureus toxin, leukocidin 과 상동
cpb gene에 암호화되었다. 독소로 작용하도록 기능함(단 밝혀지지 않음)
C. perfringens type B, C가 유발하는 질병에서 β-toxin이 중요성을 갖고 있음에도 불구하고, cpb gene 에 대해 알
C. Perfringens란?
가스괴저균 이라고도 불리우는 그람양성, 혐기성의 간균으로 아포형성균
포도당이 풍부한 배지에서는 짧은 간균, 전분이 많은 배지에서는 긴 간균이 됨
토양, 하수, 물, 사람이나 동물의 장관 등에 존재한다.
이 균은 4개의 toxin(alpha, beta, epsilon, iota)를 생산하는데 각각 독소의 종류
iii. Potential Entrants (Threat of new entrants - high)
This industry doesn’t require high initial investments and startup (fixed) costs. This is not an industry which aims to achieve economy of scales as minimum size requirements for profitable operations are not high. The maintenance costs are also low. Moreover, distribution channels are not controlled by existing players as there are many
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
Flow around and through fish gills
Jeesoon Choi and Dongyeop Baek
School of Mechanical and Aerospace Engineering, Seoul National University
Abstract. An overall view of the flow over the fish gills is first described by using the active pump system and the passive ram ventilation. The concept of ram ventilation is introduced and its merits of reducing hydrodynamic drags and efficient e