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개인, 사회물리적 환경과 서울시 어린이 신체활동 및 좌식행동
Objectives: This study aims to assess the relationships between individual, social and physical environmental correlates and physical activity (PA) and sedentary behavior (SB) in Korean children.
종속영양 질산화- 호기적탈질 세균 Stenotrophomonas sp. CW-4Y의 분리와 질소제거 특성
CW-4Y was identified as Stenotrophomonas sp. by morphological and physiological characteristics, and phylogenetic analysis of its 16S rDNA gene sequence. Nitrogen removal by CW-4Y was analyzed in
6FDA-BAPP 폴리이미드 열축합 반응에서의 잔류용매에 따른 이미드화거동 연구
A poly(amic acid) (PAA) was prepared by reaction of 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 2,2-bis(4-(4-aminophenoxy)phenyl)hexafluropropane (BAPP) in N,N-dimethylacetamide
Yb3+/Er3+ 비가 YNbO4:Yb3+/Er3+의 하향 및 상향전환 발광 특성에 미치는 영향
YNbO4:Yb3+/Er3+ is synthesized using a solid-state reaction process with a LiCl flux. The effects of the Er/(Yb+Er) ratios (REr) on the up-conversion (UC) and down-conversion (DC) spectra are