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박채린,김남주,최병세,황정민,Chaerin Park,Nam Ju Kim,Byung Se Choi,Jeong-Min Hwang 대한안과학회 2010 대한안과학회지 Vol.51 No.7
Purpose: To report a large-angle exotropia, limited adduction, epiblepharon, high myopia and no pupillary light reflex in a patient with hydranencephaly. Case summary: A ten-year-old girl with mental retardation presented with exotropia. The patient could fix only with the right eye and was unable to follow with either eye. The Krimsky test revealed 95 prism diopters of exotropia, and adduction was severely limited in both eyes. Pupillary light reflex was absent in both eyes. Cycloplegic refraction showed high myopia in both eyes. Slit lamp examination revealed lower lid epiblepharon and inferior corneal opacity in the right eye. No abnormal findings in the fundus examination were detected. A computed tomogram of the brain showed that the cerebral hemispheres were replaced by a cystic space filled with cerebrospinal fluid, compatible with hydranencephaly. Recession of the lateral rectus muscle and resection of the medial rectus muscle with epiblepharon repair of the lower lid were performed in both eyes. One week postoperatively, the epiblepharon was corrected, and the Krimsky test showed 16 prism diopters of left intermittent exotropia at near. Conclusions: When a combined manifestation of mental retardation, limited adduction, no pupillary light reflex and a large-angle exotropia is present, the possibility of a congenital developmental anomaly of the central nervous system including hydranencephaly should be suspected.
박채린,정수종,윤정민 한국기상학회 2021 한국기상학회 학술대회 논문집 Vol.2021 No.10
인간 활동으로 인한 화석연료 사용은 전 지구 평균 이산화탄소 농도를 410 ppm 이상으로 증가시켰으며 전례 없는 기후변화를 야기했다. 전 지구의 지역별 연간 이산화탄소 증가 정도 및 변동 특성 분석은 이산화탄소 증가 원인에 대한 정보를 제공함으로써 효과적인 기후변화 대응을 가능하게 한다. 본 연구에서는 2000년부터 2018년까지 관측된 전 지구 이산화탄소 농도 지상 관측소 47곳의 자료를 분석하여 위도별 이산화탄소 연간 증가율(annual growth rate)의 차이를 평가한다. 또한, 해양·육상·식생 이산화탄소 플럭스와 화석연료 사용으로 인한 이산화탄소 배출량을 모두 고려한 GEOS-Chem 모델 시뮬레이션을 통해 연간 이산화탄소 증가율의 변동 원인을 파악하고자 한다. 연간 이산화탄소 증가율은 식생의 이산화탄소 흡수량 증가로 인해 2000년대에 들어서면서 상승이 멈췄다고 알려져 있었으나, 전 지구 이산화탄소 농도 분석 결과 모든 위도대에서 연간 이산화탄소 증가율이 2010년 이후 다시 상승하는 경향을 보였다. 또한, 연간 이산화탄소 증가율의 연 변동 정도는 북반구 지역이 남반구 지역과 비교해 크게 나타났으며, 특히 중위도 지역이 저·고위도 지역보다 큰 연 변동성을 보였다. 본 발표에서는 GEOS-Chem 모델 시뮬레이션을 통해 얻어진 위도별 연간 이산화탄소 증가율 변동 원인 분석 결과에 대하여 발표하고자 한다.
Challenges in Monitoring Atmospheric CO2 Concentrations in Seoul Using Low-Cost Sensors
박채린,정수종,박훈영,우정헌,심소정,김종호,손정훈,박하영,신용승,신진호,권승미,이원영 한국기상학회 2021 Asia-Pacific Journal of Atmospheric Sciences Vol.57 No.3
With the increasing importance of monitoring and verifying urban CO2 concentrations to mitigate carbon emissions from cities, a high-resolution ground networks of low-cost CO2 sensors are emerging that have a price advantage over existing high-cost sensors. This study develops a low-cost CO2 instrument called the Seoul National University CO2 Measurement (SNUCO2M) to monitor and analyze intra-city CO2 concentrations over Seoul, Korea. The first step of establishing this low-cost CO2 sensor network involved installing the SNUCO2M at the Yongsan Building (YSB; 113 m MASL) and Namsan Seoul Tower-High (NSTH; 385 m MASL) on October 18, 2018 and July 8, 2019, respectively. For comparison with the SNUCO2M, we utilized CO2 concentrations measured by the Picarro instrument (high-cost CO2 sensor) at Gwanak Mountain (GWA) background measurement site and the lower part of the NST (NSTL). The initial CO2 measurements from the SNUCO2M, show that 1) the SNUCO2Mhas a 0.71%maximum error range and is sufficient to measure urban atmospheric CO2 concentrations; and 2) the SNUCO2M captures 26.92 and 20.30 ppm of Seoul’s summer and winter time CO2 enhancement compared to the GWA background site. Our results suggest that the low-cost sensors such as SNUCO2M successfully detect urban CO2 characteristics over the megacity and has great potential to replace high-cost sensors with cost and management limitations.
노년기 우울 증상 평가에서 주관적 척도와 객관적 척도 간 상관성 연구
박채린,추일한 대한노인정신의학회 2023 노인정신의학 Vol.27 No.1
Objective: The aim of this study was to investigate the correlation between subjective and objective depression rating scale for the elderly with depressive symptoms. Methods: Thirty three outpatients aged more than 55 with depressive symptoms were assessed with the Patient Health Questionnare-9 (PHQ-9) and the Montgomery-Asberg Depression Rating Scale (MADRS). Similar items from each scale were paired to investigate their correlations. The level of agreement between the PHQ-9 and the MADRS was also assessed for subjects by using discrepancy-score. Results: Correlation between total scores of the PHQ-9 and the MADRS was significant (r=0.85, p<0.001). There were significant correlations between the paired items except for the item about volition. These results were the same in the group whose total education years are 7 or more. However, in the group whose total education years are 6 or less, there was no significant correlation between the paired items about sleep, concentration and volition. Conclusion: These results demonstrate that using the PHQ-9 in elderly patients is reliable and education level might be considered when interpreting the scale.
연안 요각류의 성체와 휴면란의 계절별 개체수 변화를 통한개체군 유지 전략
박채린,주세종,박원규,김현우,이수린,박정호 한국해양과학기술원 2018 Ocean and Polar Research Vol.40 No.4
We investigated seasonal variations in the abundance of the adults and the resting eggs of copepods to understand the role of copepod resting eggs for maintaining their population inhabiting the coastal area of Dadaepo, Korea. Adults and resting eggs of copepods were collected bi-monthly with a conical net (45 cm mouth diameter, 330 μm mesh size) and van Veen grab (0.1 m2 area), respectively, from October 2016 to September 2017. The species of resting eggs were identified using mtCOI gene. The mean abundance of copepods was highest in October (3686 ± 1190 inds·m-3) and lowest in January (176 ± 60 inds·m-3) with the dominance of Paracalanus parvus s.l.. Among copepod producing resting eggs, Acartia omorii and Centropages abdominalis were dominant. The mean abundance of resting eggs was the highest in July (9148 ± 6787 eggs·m-2) and the lowest in October (530 ± 348 eggs·m-2). Most of the collected resting eggs were identified as A. omorii’s. The mean abundances of A. omorii adults and resting eggs were highest in July, and both abundances fluctuated in a similar pattern except in September. In September, A. omorii adults were observed in a state of low abundance, while their resting eggs occurred in a state of high abundance. These results suggest that A. omorii maintain their population by producing a large quantity of resting eggs, particularly diapause eggs, before the seawater temperature rises. These eggs would hatch and be newly recruited to their population when the environmental condition becomes favorable.