모든 물질은 순환한다는 점에 착안
Recycling을 함으로써 자연에서 생선된 물질을 다시 자연으로 돌려보내며 생태계의 평행을 유지하고 뿐만 아니라 더욱 비옥한 땅을 얻는 효과도 거둘 수 있다.
Selecting an Outdoor Compost Bin
Composting in a Small Outdoor Space
Rodent Proofing
Materials to Compost
Complete L
Preface
You feel as if you were in the night tour at Changdeokgung Palace
with your family, friends, tourists in moonlit night with this book !
This book is the culmination of six years of my research, field study, and personal experience on the subject of the nighttime tour named Moonlight Tour of Changdeokgung Palace. While working as a tour guide at the royal palace, I gave many tou
될 수 있는 자원이라 할 수 있다. 우리나라의 경우는 천연가스 수입경로의 다양화와 자원 비축을 위하여 현재 인도네시아에서 진행 중인 석탄층메탄가스(coal-bed methane, CBM) R&D 사업을 사례로 제시할 수 있다. 따라서 본론에서는 다양한 비재생에너지 중 ‘석탄층 메탄가스’에 대해 서술해 보겠다.
Introdction
HELICOBACTER PYLORI -> chronic inflammatory, intestinal metaplasia, dysplasia, and finally adenocarcinoma
cag pathogenicity, which encodes a type IV secretion system (T4SS)
-> more severe inflammation, gastric cancer
proinflammatory + mitogenic stimuli -> COX-2 -> 위 상피세포 -> PGE2 -> 암
PGE2 -> tumor growth, angiogenesis, inhibiting apoptosis, inducing invas
3D printing
3D printing or additive manufacturing (AM) refers to any of the various processes for printing a three-dimensional object. Primarily additive processes are used, in which successive layers of material are laid down under computer control. These objects can be of almost any shape or geometry, and are produced from a 3D model or other electronic data source.
Basic principles
If the