http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ho Gyeong Chae(채호경),Ronley C. Canatoy,Hyeon-Ji Song,Snowie Jane C. Galgo,Ji Su Ha,So Yeong Park,Pil Joo Kim 한국토양비료학회 2021 한국토양비료학회 학술발표회 초록집 Vol.2021 No.11
Plastic film mulching (PFM) has been widely proposed for developing crop productivity. It can control weed growth, reduce soil evaporation and improving soil temperature and moisture content. However, the improved soil environmental condition might increase the net primary production (NPP) as a C input source, as well as soil organic matter decomposition. Therefore, the effect of PFM on soil C stock change is still under discussion. To evaluate the effect of PFM on soil C stock changes, PFM and no-mulching were installed as main treatment, and chemical fertilizer and chemical fertilizer with urease inhibitor (NBPT) were placed as sub-treatment. In all treatments, stover as organic matter source was recycled at the harvesting stage for two years. PFM increased respired C loss compared to no-mulching due to improved soil temperature. However, PFM drastically enhanced maize biomass productivity by 98-118 and 88-95% in control and NBPT, respectively. After two years of stover incorporation, PFM significantly increased net ecosystem C budget (NECB) by 88-171 and 31-120%, in control and NBPT, respectively. Different with the general knowledge, which PFM boosts soil microbial activity and then decreased soil C stock, PFM was very effective to increase soil C stock under stover recycling condition, due to higher biomass productivity increase than mineralized C loss increase.
한국인에서 hOGG1 유전자의 Ser326Cys 다형성과 원발성 폐암의 위험도
채상철 ( Chae Sang Cheol ),김경록 ( Kim Gyeong Log ),주소영 ( Ju So Yeong ),이수연 ( Lee Su Yeon ),강경희 ( Kang Gyeong Hui ),전경녀 ( Jeon Gyeong Nyeo ),차승익 ( Cha Seung Ig ),김창호 ( Kim Chang Ho ),정태훈 ( Jeong Tae Hun ) 대한결핵 및 호흡기학회 2002 Tuberculosis and Respiratory Diseases Vol.52 No.1
Gyeong-Pil Jang,Ji-Hun Yang,Su-Young Kim,Young-Bin Chae,Hyuk-Doo Choi,Dae-Gyu Moon,Kyoung-Ho Lee,Chang-Kyo Kim 대한전자공학회 2024 Journal of semiconductor technology and science Vol.24 No.3
Zn0.9Mg0.1O nanoparticles (NPs) were employed as electron transport layers (ETLs) with varying thickness, and the effects thereof on the efficiency of top-emission quantum dot light-emitting diodes (TE-QLEDs) fabricated inside a bank were investigated. Increasing the thickness of the Zn0.9Mg0.1O NP ETL led to reduction in oxygen vacancies, resulting in decreased conductivity and current density of the TE-QLEDs. This reduction in conductivity was confirmed by electron-only device (EOD) characteri-zation. At a Zn0.9Mg0.1O NP ETL thickness of 30 nm, the hydroxide oxygen concentration reached a minimal, minimizing exciton quenching at the quantum dot (QD) and Zn0.9Mg0.1O NP ETL interface and thus enhancing the QD charge balance, significantly improving TE-QLED efficiency. A TE-QLED with a 30-nm-thick Zn0.9Mg0.1O NP ETL exhibited outstanding performance, with a maximum current efficiency of 90.92 cd/A and a top external quantum efficiency of 21.66%. These findings underscore the critical role of Zn0.9Mg0.1O NP ETL thickness in suppressing exciton quenching and optimizing charge balance for enhanced TE-QLED performance.
Effects of shift work on abdominal obesity among 20–39-year-old female nurses
Gyeong-Jin Lee,Kunhyung Kim,Se-yeong Kim,Jeong-Ho Kim,Chunhui Suh,Byung-Chul Son,Chae-Kwan Lee,Junghye Choi 대한직업환경의학회 2016 대한직업환경의학회지 Vol.28 No.-
Background: This study aimed to investigate the effects of shift work on abdominal obesity among young and middle-aged female nurses during a 5-year retrospective study. Methods: This retrospective study included female nurses (20–39 years old) who worked at a university hospital in Korea and had available health screening results from 2010–2015. Among 2,611 employees, 934 healthy 20–39-year-old female nurses were identified, and data regarding their demographic information (age and date of employment), waist circumferences (WC), and lifestyle factors (alcohol and exercise) were obtained. Abdominal obesity was defined as a WC of ≥80 cm, based on the World Health Organization’s Asia-West Pacific standard in 2000. The mean WC change from baseline was analyzed using the paired t test, and the association between shift work and abdominal obesity was analyzed using the generalized estimating equation. Results: Compared to all day workers (both age groups), the 20–29-year-old nurses did not exhibit significant changes in WC at each follow-up. However, among the 30–39-year-old nurses, shift workers exhibited a significant change in WC (vs. baseline) during years 4 and 5, compared to day workers. After adjusting for effective confounders and stratifying the participants according to age, the 20–29-year-old nurses exhibited an odds ratio of 3.21 (95 % confidence interval: 1.29–7.98) for shift work-associated obesity, although the odds ratio for the 30–39-year-old nurses was not statistically significant. Conclusion: In the study population, shift work was associated with a significant change in mean WC among 30–39-yearold nurses, and the shift work-associated risk of abdominal obesity was significant among 20–29-year-old nurses. These results indicate that shift work may influence abdominal obesity differently in 20–29-year-old and 30–39-year-old female nurses.