• Journal of Food Hygiene and Safety
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• v.37 no.3
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• pp.149-158
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• 2022

This study aimed to investigate pesticide residues in 160 stalk and stem vegetables marketed in Northern Gyeonggi-do. The QuEChERS method using GC-MS/MS and LC-MS/MS was employed to analyze the residues of 341 pesticides in the samples. The maximum or lower than the residue limit was recorded in 75 samples (46.9%), while 4 samples (2.5%) exceeded the maximum residue limit (MRL). Thirty-nine kinds of residual pesticides were detected including fungicides (14), insecticides (22), herbicides (2), and plant growth regulator (1). Carbendazim and pendimethalin were the most frequelntly detected pesticides. Fenitrothion, procymidone, and diazinon exceeded MRL in garlic chives, and Welsh onion. This indicated that these vegetables along with water celery should be constantly monitored.

• The Journal of the Convergence on Culture Technology
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• v.6 no.2
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• pp.231-238
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• 2020

The main purpose of this current study was to identify the structural relationships between the variables of team attachment, location-based service, and future fan behaviors by utilizing Technology Acceptance Model (TAM). Among the 10 KBO franchises, SK Wyverns and KT Wiz were qualified to have their own smart applications programs and the relevant infrastructure at their home venues. Thus, a total of 500 surveys were collected from SK Wyverns and KT Wiz games during September of 2019 and a total of 448 were used for data analysis after deleting 52 surveys due to the missing data. According to the results of a structural equation modeling, 12 positive (+) causality out of 14 hypotheses were confirmed that there must be causal relationships among the variables of location-based service at the smart stadium, TAM, fan attachment, and future fan behavior. It is hoped that this study can be contributing to the foundational developments of marketing strategies by adopting the new technological advancement in the Korean sport industry in the future.

• Korean journal of applied entomology
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• v.58 no.3
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• pp.209-218
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• 2019

This study was conducted to develop a technology for environmentally friendly control of sweet-potato whitefly, Bemisia tabaci, by controlling their behavior using a push-pull strategy in a tomato greenhouse. B. tabaci was attracted the most by yellow color, light source of 520 nm, whereas it avoided the complex light treatment of 450 + 660 nm. The two natural enemies of B. tabaci, Cyrtopeltis tenuis and Orius laevigatus, were attracted the most by 520 nm light source. B. tabaci was repelled by the volatile organic compounds ocimene and carvacrol and was the most attracted by methyl isonicotinate. When buckwheat was added into the tomato greenhouse, the density of C. tenuis was maintained at about 16 times higher than when untreated for 15 days. As a result of the combined treatment of push-pull strategy, the density per trap of B. tabaci was three times lower than when no treatment was applied, and the control of this pest increased with time and reached up to 68.7%.

• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.103-112
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• 2018

The purpose of this study was to understand the violence experiences of female nurses in general hospitals and to investigate the influence of violence experiences on depression. The research subjects were 2,714 female nurses in five general hospitals in Seoul and Gyeonggi-do. As a results, female nurses in general hospitals suffered from verbal, physical and sexual violences in descending order while working. Age, marital status, work type, experiences of verbal violence and sexual violence had the influence on depression. Sexual violence experiences influenced on depression the most. Based on the results of the study, it is proposed that subsequent studies are necessary to provide more practical solution; quantitative researches investigating violence in depth, and qualitative researches identifying differences in violence and response to violence in workplace by profession.

• Journal of Convergence for Information Technology
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• v.10 no.8
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• pp.187-193
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• 2020

This study analyzed how risk factors in management affect the management of working capital in general hospitals in Korea. The data used accounting information for three years (2016~2017 and 2018) of 271 general hospitals using the medical institution accounting information disclosure system. The independent variables were the working capital level and the cash conversion cycle, The dependent variables were operational risk and market risk, Control variables were selected as components of working capital(cash, accounts receivable, inventory assets, accounts payable). According to the study, the lower the operational risk, the higher the level of working capital hospitals in Korea. Working capital decisions were confirmed to be attributable to operating risks, cash, inventory assets and accounts payable. And the lower the market risk (Operating Margin), the higher the cash conversion cycle. Therefore, it is necessary to review appropriate management measures of operational risks, cash, inventory assets and accounts payable identified as operating capital determinants so that medical institutions can also have economic response capabilities in consideration of the specificity of their operations.

• Journal of the Korean Applied Science and Technology
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• v.40 no.6
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• pp.1249-1258
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• 2023

The purpose of this study was to reveal the effect of COP variable of support feet on relative reach distance and composite score of active feet during YBT. 29 adults in their 20s(age: 24.4±3.0 yrs, height: 171.0±10.5 cm, weight: 72.1±12.1 kg, leg length: 88.2±5.8 cm) participated in the study. Using YBT, relative reach distance and composite score of active feet were calculated, and COP variables of support feet were measured on left and right support feet. Multiple regression analysis was used to determine the effect of COP variables of support feet during YBT on relative reach distance and composite score. As a result of the study, during YBT, when supporting right feet, the influence of AP COP velocity, ML COP velocity and COP velocity in posterolateral direction was significant, and when supporting left feet, the influence of AP COP velocity, ML COP velocity in posteromedial direction improved relative reach distance and composite score.

• Journal of Labour Economics
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• v.39 no.1
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• pp.1-31
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• 2016

This paper investigates the cyclical behavior of UI benefit take-up rate, the share of unemployed persons who are eligible for job seekers' allowances(JSA) and actually receive them. Using Korea's Employment Insurance DB, it also identifies the factors linked to the decision to take up job seekers' allowances. The results show that the take-up rate is countercyclical and leads both unemployment rate and Coincident Composite Index cyclical component by 6 months and is positively correlated with replacement rate and benefit duration, suggesting that extending benefit duration and raising benefit level can boost benefit claims to increase take-up rates in Korea.

• Proceedings of the KSRS Conference
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• 2006.03a
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• pp.87-90
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• 2006

인천-제주 정기여객선에 수온, 클로로필 및 탁도계 등의 센서를 설치하여 해양환경 모니터링 시스템을 구축하였으며, 여객선 항로를 따라 2001년부터 2004년까지 18회에 걸쳐 자동관측과 함께 20-30분 간격으로 30여개의 정점에서 해수를 채수하여 분석하였다. 연구의 목적은 채수된 해수를 직접 분석하여 여객선에 설치된 자동측정 센서가 신뢰성 있는 자료를 생산하는지 비교 분석하는 것과 서해 한반도 연안의 해수특성을 전체적으로 이해함으로서 계절적인 변동을 파악하는 것이다. 2001-2003년 초까지 사용된 YSI 센서는 수온, 염분, 탁도와 클로로필 농도 등을 종합적으로 측정할 수 있는 멀티센서이나, 설치하여 운용해 본 결과 정밀도에서 많은 문제점이 발생하였다. 따라서 2004년 이후 클로로필과 탁도 자동 측정을 위한 단일 센서들로 교체되었으며 이들 센서는 멀티센서 보다 좋은 결과를 보였다. 비록 자동측정 장치에 문제는 있었으나, 18회에 걸친 서해 연안의 실시간 모니터링을 통하여 해수환경의 계절별 특성을 이해할 수 있었다. 부유퇴적물의 경우, 경기만과 목포 주변의 남쪽 해안은 농도가 모든 계절에서 높게 나타났으며 특히 가을 겨울철에 가장 높은 값을 나타냈다. 클로로필의 농도도 경기만 중심지역과 남쪽 해안에서 여름과 가을철에 걸쳐 0.4 - 6.0 $mg/m^3$ 정도의 분포를 보였으나 겨울철에는 2.6 $mg/m^3$ 미만으로 나타났다.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.252-252
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• 2023

우리나라는 최근 지역별, 계절별 강수편차가 증가하고, 특정지역에 강수량이 부족하여 국지적 가뭄이 빈발하고 있는 실정이다. 우리나라는 '14년도 강원·경기, '15년도 강원·경기·충북·충남, '17년도에는 전북·전남·경북·경남 지역에서 강수부족에 의한 지역별 가뭄 발생하였다. 특히, '15년 가뭄의 경우 총강 수량 942.9mm로 충남서부권에서 큰 가뭄피해를 초래하고 정부 종합대책 발효 등 가뭄피해의 심각성을 알리는 계기가 되었으며 '23년 현재 전라도를 비롯한 남부지역의 겨울 가뭄 장기화로 용수공급 제한과 비상급수를 실시하고 있다. 최근 30년간 연 강수량은 감소 추세이며, 최근 10년 평균 강수량은 1,264.2mm로 최근 30년(1,305.0mm) 보다 40.8mm 부족하는 등 뚜렷하게 감소하는 추세이다. 가뭄취약지도는 「수자원의 조사·계획 및 관리에 관한 법률」 제7조1항 및 동법 시행령 제5조에 의거 가뭄취약성 평가를 기반으로 작성되며 기후변화 대비 선제적 가뭄대응을 위한 정보제공을 위해 전국을 대상으로 지역이 가지고 있는 특성과 여건을 반영한 지역별 가뭄 취약성 평가결과를 도출함이 목적이다. 본 연구는 "가뭄 취약성 평가 및 가뭄취약지도 구축(2018년)"으로 기 정립된 가뭄취약성 평가를 전국을 대상으로 확대 적용하며 선도 사업에서 각 평가부문별로 적용 범위 등을 보완하고자 하였다.

• Journal of Conservation Science
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• v.36 no.6
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• pp.578-590
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• 2020

During the 1960-1970s, a group of ceramic conservation scientists and ceramic historians in South Korea came together and established their own disciplines. While the two disciplines share the same ceramics as the subjects of their research, there has been little interaction between the two as their research outputs are articulated in remarkably different languages. This paper aims to address the following questions by using a case study that focuses on the research on white porcelains centered on the project of Gyeonggi Museum and a series of studies conducted by one of the museum's project research teams. First, what are the characteristics of and differences between the explanation styles of the two disciplines that share the same research subjects of ceramics? Second, why has the communication between the two disciplines become difficult? Third, if there can be a trading zone wherein the two disciplines would be able to communicate again, what would be its epistemic conditions? The focus of this paper is the relationship between scientific data and ordinary language, which the two disciplines have shared from their inception. By analyzing the relationship, I first argue that, as the analytical techniques of conservation science have become more developed, conservation science's data have gradually lost its relevance in ceramic history, in spite of a shared common language between them; Second, I argue that by recovering the import of shared language again, the scientific data can be placed in a different practical context, providing novel interpretations that are relevant and often consequential to ceramic history.