natural compounds. Many unanswered questions remain regarding the sources, biosynthetic pathways and biological actions. Recent findings are as follows: (1) Benzodiazepines are of natural origin; (2) mammalian brain contains benzodiazepines in conce
: compounds that have some antimicrobial activity
from nature source
① plant origin
Spices and herbs are well known to inhibit
bacteria, yeasts, and molds.
② Microbial origin
main stream field of study is the use of
lactic acid bacteria(LAB).
Natural Convection)와 강제대류(Forced Convection)으로 나눌 수 있다.
▣ Newton's Equation
where, : Heat Transfer Coefficient [ ]
전열계수는 Geometry, Physical Property, Flow Velocity, Temperature Profile 등에 따라 변한다.
▣ 무차원군 (Dimensionless Group)
Dimension Analysis로 부터 Nusselt Number, Reynolds