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Implementation of Web-based Groundwater Management for Auto Problem Detection
Yeongyeong Kim,Hanjea Yoon,Manhee Lee 한국정보기술융합학회 2014 JoC Vol.5 No.4
Efficient groundwater management system grows important because water resource becomes scarce every year. Recently, it is reported that groundwater level is related to occurrences of sinkholes. This research focused on implementing web-based groundwater management system with automatic problem detection functions. This system can detect malfunctions of water pump motor, water level sensor, leaky water pipe, etc.
윤규현,김자연,백경란,Kim Hyun Soo,이혁민,황유성,이순영,조성일,이훈재,Kim Yeongyeong,Kim Brian Byoungguk,Lee June-Woo,Kim Ah-Ra,Do Hyeon-Nam,김동현 한국역학회 2022 Epidemiology and Health Vol.44 No.-
OBJECTIVES: After the third wave of coronavirus disease 2019 (COVID-19) , by mid-February 2021, approximately 0.16% of the Korean population was confirmed positive, which appeared to be among the lowest rates worldwide at that time. However, asymptomatic transmission is challenging for COVID-19 surveillance. Therefore, a community-based serosurvey of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection was conducted to understand the effectiveness of Korea’s strong containment strategy. METHODS: We collected 5,002 residual sera samples from January 30 to March 3, 2021, from 265 medical facilities in Seoul, 346 in Gyeonggi Province, and 57 in Incheon. Sixty samples from tertiary institutions were excluded. We defined the sub-regions according to the addresses of the medical facilities where the specimens were collected. Elecsys Anti-SARS-CoV-2 was used for screening, and positivity was confirmed using the SARS-CoV-2 sVNT Kit. Prevalence was estimated using sampling weights and the Wilson score interval for a binomial proportion with a 95% confidence interval. RESULTS: Among the 4,942 specimens, 32 and 25 tested positive for COVID-19 in the screening and confirmatory tests, respectively. The overall crude prevalence of SARS-CoV-2 antibodies was 0.51%. The population-adjusted overall prevalence was 0.55% in women and 0.38% in men. The region-specific estimation was 0.67% and 0.30% in Gyeonggi Province and Seoul, respectively. No positive cases were detected in Incheon. CONCLUSIONS: The proportion of undetected cases in Korea remained low as of early 2021 . Therefore, an infection control strategy with exhaustive tracing and widespread pre-emptive testing appears to be effective in containing community spread of COVID-19.
작약의 Albiflorin, Paeoniflorin 함량과 토양특성 간의 상관관계 연구
어현지(Hyun Ji Eo),박영기(Youngki Park),박광훈(Gwang Hun Park),김지아(Ji-Ah Kim),김다솜(Da Som Kim),강연경(Yeongyeong Kang),김기윤(Kiyoon Kim),장준혁(Jun Hyuk Jang),김현준(Hyun-Jun Kim) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.4
The aim of this study was to investigate the correlation between soil properties and marker compounds contents of Paeonia lactiflora. The methods of determining marker compounds were validated by measuring the linearity, limit of detection (LOD), limit of quantification (LOQ), precision, accuracy and recovery using UPLC analysis. P. lactiflora contained albiflorin at 0.04 ± 0.00 ~ 2.79 ± 0.21%, paeoniflorin at 1.98 ± 0.14 ~ 6.67 ± 0.84%. The root dry weight (RDW) of P. lactiflora was 0.06 ± 0.02 ~ 1.27 ± 0.28 ㎏. The soil properties analysis such as soil pH, electric conductivity (EC), organic matter (OM), total nitrogen (TN), available phosphate (Avail. P2O5), exchangeable cation and cation exchange capacity (CEC) were performed following standard analysis manual. The results of correlation analysis between soil properties and growth characteristics, available P2O5 was positively coreelated with the RDW of P. lactiflora. On the other hand, the RDW of P. lactiflora showed significantly negative correlation with contents of albiflorin and paeoniflorin. The results of this study was might be help to provide useful information on the establish of standard cultivation by the investigate correlation analysis between growth characteristics and marker compound contents of P. lactiflora. 본 연구는 작약의 재배지별 토양특성과 albiflorin, paeoniflorin 함량 간의 상관관계를 구명하기 위하여 수행되었다. UPLC를 사용하여 직선성, LOD, LOQ, 정밀성, 정확성, 회수율을 평가하여 분석법을 검증하였다. 작약의 albiflorin 함량은0.04 ± 0.00 ~ 2.79 ± 0.21%, paeoniflorin은 1.98 ± 0.14 ~ 6.67 ± 0.84%로 확인되었다. 또한 작약의 개체별 뿌리 중량을조사한 결과, 0.06 ± 0.02 ~ 1.27 ± 0.28 ㎏로 지역별 차이를확인하였다. 작약 재배지의 토양특성은 pH, 전기전도도, 유기물 함량, 질소전량, 유효인산, 치환성 칼륨, 치환성 칼슘, 치환성 마그네슘, 치환성 나트륨, 양이온치환용량 등을 분석하였다. 재배지 토양특성과 작약 뿌리 중량 간의 상관관계를 분석한 결과, 토양의 유효인산과 작약 뿌리 중량 간의 유의적인 정의 상관관계를 확인하였다. 또한 작약 뿌리 중량과 지표성분 함량 간의상관관계를 분석한 결과, 작약 뿌리 중량은 지표성분인 albiflorin, paeoniflorin의 함량과 유의적인 부의 상관관계를 보이는 것을확인하였다. 따라서 작약 재배에 있어 지표성분과 생산량을 동시에 증가시키는 재배법 개발에 유용한 정보를 제공할 것으로판단된다.
Kim, Kiyoon,Islam, Rashedul,Benson, Abitha,Joe, Manoharan Melvin,Denver, Walitang,Chanratan, Mak,Chatterjee, Poulami,Kang, Yeongyeong,Sa, Tongmin Korean Society of Soil Science and Fertilizer 2016 한국토양비료학회지 Vol.49 No.2
Soil is a dynamic biological system, in which it is difficult to determine the composition of microbial communities. Knowledge of microbial diversity and function in soils are limited because of the taxonomic and methodological limitations associated with studying the organisms. In this review, approaches to measure microbial diversity in soil were discussed. Research on soil microbes can be categorized as structural diversity, functional diversity and genetic diversity studies, and these include cultivation based and cultivation independent methods. Cultivation independent technique to evaluate soil structural diversity include different techniques such as Phospholipid Fatty Acids (PLFA) and Fatty Acid Methyl Ester (FAME) analysis. Carbon source utilization pattern of soil microorganisms by Community Level Physiological Profiling (CLPP), catabolic responses by Substrate Induced Respiration technique (SIR) and soil microbial enzyme activities are discussed. Genetic diversity of soil microorganisms using molecular techniques such as 16S rDNA analysis Denaturing Gradient Gel Electrophoresis (DGGE) / Temperature Gradient Gel Electrophoresis (TGGE), Terminal Restriction Fragment Length Polymorphism (T-RFLP), Single Strand Conformation Polymorphism (SSCP), Restriction Fragment Length Polymorphism (RFLP) / Amplified Ribosomal DNA Restriction Analysis (ARDRA) and Ribosomal Intergenic Spacer Analysis (RISA) are also discussed. The chapter ends with a final conclusion on the advantages and disadvantages of different techniques and advances in molecular techniques to study the soil microbial diversity.
학령기 후기 자녀를 둔 어머니의 양육스트레스와 양육행동의 관계에서 자아분화의 조절효과
박연경 ( Yeongyeong Park ),김준미 ( Junmi Kim ),신효정 ( Hyojeong Shin ) 인문사회 21 2023 인문사회 21 Vol.15 No.1
연구 목적: 본 연구는 학령기 후기의 자녀를 둔 어머니의 양육스트레스와 양육행동 관계에서 어머니의 자아분화의 조절 효과를 검증하는 데 목적을 두었다. 연구 방법: 초등학교 4, 5, 6학년 학령기 후기 자녀를 둔 어머니 317명을 대상으로 온라인 설문조사를 하였으며, SPSS 23.0을 사용하여 조절 효과를 검증하였다. 연구 내용: 본 연구를 통하여 어머니의 양육스트레스와 양육행동(거부-제재 양육행동, 허용-방임 양육행동, 온정-수용 양육행동) 간의 관계에서 자아분화의 조절 효과를 확인하였다. 결론 및 제언: 연구 결과 어머니의 자아분화 수준이 양육스트레스와 양육행동을 조절하였다. 본 연구결과를 바탕으로 양육스트레스로 인해 양육의 어려움이 있는 어머니를 위한 개입 방안 및 후속 연구를 할 필요가 있을 것이다. The purpose of this study was to examine the moderating effect of maternal self-differentiation on the relationship between parenting stress and parenting behavior among mothers of late school-age children. An online survey was conducted with 317 mothers of late school-age children in grades 4, 5, and 6, and SPSS 23.0 was used to test the moderating effects. This study confirmed the moderating effect of ego differentiation on the relationship between mothers’ parenting stress and parenting behaviors (rejecting-sanctioning parenting, permissive-neglectful parenting, and warm-accepting parenting). The results showed that mothers’ levels of self-differentiation moderated parenting stress and parenting behaviors. Based on the findings of this study, it is necessary to develop interventions and follow-up studies for mothers who have parenting difficulties due to parenting stress.