• 농업과학연구
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• 제44권1호
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• pp.40-49
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• 2017

Cultural practices for adzuki bean and the distribution of weed species in the south-west regions of Korea were surveyed to provide information on effective weed management. Approximately 27.5% of the farm households were growing adzuki bean in an area larger than 1 ha while the rest grew the crop in an area smaller than 1 ha. Of all adzuki bean growers, 17.1% seeded in early June, 8.6% in mid June, 34.3% in late June, 17.1% in early July, 20.0% in mid July, and 2.9% in late July. The average planting distance was $71.0{\times}29.5cm$. From the 40 surveys in adzuki bean fields, 35 weed species in 17 families were identified. According to the occurrence frequency, the dominant weed species were Digitaria sanguinalis, Acalypha australis, Cyperus amuricus, Echinochloa crus-galli, and Amaranthus nangostanus in decreasing order of dominance. However, based on dry weight, Chenopodium album (34.4%) was the most dominant followed by Acalypha australis (21.9%), Amaranthus nangostanus (19.1%), Digitaria sanguinalis (7.5%), and Portulaca oleracea (6.1%). The exotic weeds found in the field of adzuki were Ipomoea hederacea, Abutilon avicennae, and Celosia argentea. The plant heights of I. hederacea, A. avicennae, and C. argentea were 259 cm, 98 cm, and 76 cm, respectively, while the fresh weights were 850 g, 66 g, and 101 g, respectively. Integrated weed management systems utilizing mechanical, chemical, and biological control techniques need to be developed for effective weed management in adzuki bean production.

• 한국방재안전학회논문집
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• 제14권4호
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• pp.69-80
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• 2021

본 연구는 매년 실시되는 지역안전도 평가제도중 문제점이나 개선을 요하는 사항들을 발굴하여 개선방안을 제시하고자 하였다. 연구의 구성 및 내용을 간략하게 소개하면, 서론인 도입부에서는 2020년도에 행정안전부에서 새롭게 적용한 지역안전도 평가 방법에 대하여 기술하였다. 지자체에서 최종 평가받은 지역안전도 등급에 따른 활용 방안도 소개하였다. 본론에서는 지역안전도 관련 선행 연구자들의 다양한 견해를 요약 기술하였다. 또한 지역안전도의 지표구성, 지수 산출 방법, 현행 지표를 적용함에 있어서 문제점을 도출하였다. 첫째, 재해위험요인 분야의 「사회적 취약성 지표」 "반지하 가구 수"는 "기초생활 수급자 가구 수"로 대체한다. 또한 "비닐하우스 면적"은 "비닐하우스에 거주하는 가구 수, 컨테이너 가구 수, 쪽방촌 가구 수" 등을 합한 자료로 대체하여 평가한다. 둘째, 상습 가뭄재해지역 관리 평가부문은 시군구의 상수도 보급률이 95% 이상인 지자체는 "결측" 처리한다. 수도권 및 도시화가 이루어진 자치단체에는 가뭄재난이 거의 발생하지 않기 때문이다. 셋째, 방재대책추진 대응분야의 「지역자율방재단 활성화」 평가지표 내용에 지역자율방재단과 더불어 안전보안관, 안전모니터봉사단, 재난안전 실버감시단 등의 활동도 평가에 추가한다. 다만 각 지자체 마다 지역자율 방재조직의 명칭이 상이할 수 있기 때문에 재난 예방을 위해 조직되어 활동하는 자율 방재조직이면, 그 활동 실적을 모두 합산하여 평가하는 것이 타당할 것이다. 넷째, 유엔재해위험경감사무국(UNDRR)에서 사용하고 있는 안전도시 평가도구인 스코어카드 평가 항목 중 자연재난과 연관이 깊은 "자연생태계가 제공하는 보호기능 강화를 위한 자연 완충재 보존"항목을 차용한다. 스코어카드 평가는 UNDRR에서 강조하는 "기후 위기와 재해에 강한 도시 만들기"라는 캠페인을 전개하면서 지자체의 재난 복원력(resilience)을 향상시키는 데 초점이 맞추어져 있는 평가 지표이다. 끝으로 "지역안전도"와 "지역안전지수"명칭이 유사하여 지역안전도의 용어를 "자연재난 안전도" 또는 "자연재해 안전도"라는 명칭으로 변경한다. 그래야만 일반인 누구나 지역안전도와 지역안전지수를 구분할 수 있기 때문이다.

• 한국환경보건학회지
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• 제44권5호
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• pp.421-432
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• 2018

Objectives: In this study, we started to develop an indoor garden integrated IoT solution based on IAQ (indoor air quality) and interconnection with an environmental database for smart management of indoor gardens. The purpose of this study was to develop and apply an integrated solution for customized air purification from an indoor garden through big data analysis using IoT technology. Methods: An IoT-based IAQ monitoring system was established in three households within a new apartment building. Based on real-time and long-term data collected, $PM_{2.5}$, $CO_2$, temperature, and humidity changes were compared to those of indoor garden applications and the analyzed results were indexed. Results As a result of the installation, all three households had no results exceeding the standard for indoor air pollution on average $PM_{2.5}$ and $CO_2$ indices. In the case of indoor garden installation, the IAQ index increased to the "Good" section after the installation, and readings in the "Bad" section shown before the installation disappeared. The comfort index also did not dip into the "Uncomfortable" section, where it had been preinstallation, and significantly lowered the average score from "Uncomfortable for sensitive groups" to "Good". Overall, the IAQ composite index for the generation of installations decreased the "Good" interval, but "Bad" did not appear. Conclusions In this study on developing an integrated solution for IAQ based on IoT indoor gardens, big data was analyzed to determine IAQ and comfort indexes and an IAQ composite index. Through this process, it became understood that it is necessary to monitor IAQ based on IoT.

• 한국수자원학회논문집
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• 제50권7호
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• pp.467-473
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• 2017

최근 녹조현상이 심화되면서 이를 해결하기 위한 방안으로 댐의 추가방류에 대한 필요성이 제기되고 있다. 따라서 보다 합리적인 댐 추가방류와 관련된 정책 수립을 위해서 댐의 추가방류수에 대한 경제적 가치 측정의 필요성이 제기되고 있다. 이에 본 논문에서는 녹조 저감과 수질개선을 위한 댐의 추가방류에 대한 경제적 가치를 도출하기 위하여 일반가구의 지불의사액을 분석하고자 한다. 한편 연구방법론적인 측면에서 조건부 가치측정법(CVM)을 적용하되, 최우추정법(Maximum Likelihood Estimation)을 이용하는 기존의 CVM 연구와 달리 베이지안(Bayesian) 추정법을 적용하였다. 본 연구는 전국의 1,000가구를 대상으로 충주댐의 추가방류를 현재보다 200% 증가시켰을 경우를 가정하여 댐 추가방류의 사회적 편익 즉, 조류저감 효과를 산정하였다. 분석결과 가구당 연간 WTP는 1,909.3원으로 이를 연간 총편익으로 계산하면 357.1억 원, 10.56원/$m^3$이다.

• 한국보건간호학회지
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• 제29권2호
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• pp.190-202
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• 2015

Purpose: This study was designed to determine visiting nurses' job performance and self confidence by career and number of visiting households. Methods: The subjects were 120 visiting nurses fully in charge of the visiting health care program working in 18 community health care centers, who were checked for 5 domains of visiting nurses' job, 39 tasks of job performance and self confidence. ANOVA test, Scheffe test and Pearson correlation coefficient were used for data analysis. Results: The level of job performance and self confidence indicated highest in understanding of the visiting health care program among 5 domains of visiting nurses' job. The level of job performance and self confidence indicated lowest in community resource connection. When nurses were classified by a career with approximately 5 years of working experience, nurses with a career of more than 5 years were highly significant. Job performance and self confidence were positively correlated. Conclusion: Based on the result of this study, it is recommended that the education program for newly hired nurses should be differentiated from that for visiting nurses with a career in order to improve quality of the visiting nursing program and capacity of residents' health care.

• 대한가정학회지
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• 제36권10호
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• pp.35-48
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• 1998

The Korean family is changing. The growth in dual-earner households has been the 'revolution' of the century, implying inevitable modification of the role division in marriage toward greater symmetry of responsibility for breadwinning and homemaking. So, the purpose of this study is to understand husbands' housework and to investigate the change of the husbands' housework. This means to investigate how the husband is related to housework. For these research purpose, 60 dual-earner couples were deeply interviewed. The major discussions of this study can be summarized as follows: There are four types of housework in men's work, the type of refusal, the type of avoidance, the type of inevitability, and the type of participation. These types are taken order to understand change in housework is women's work. Men in the type of avoidance in household work is 25%, they have a tendency to avoid housework with making any excuses. People in the type of inevitability is 20%. These men are compelled to work in household owing to circumstances beyond control. 13% of couples is type of participation. These have a new idea of housework. They don't get the gender role division. They can become a good husband. and eventually solve conflicts and problems in couples.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.27-32
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• 2009

The measuring apparatus such as heat meter is legally obliged to be installed and used for heat rating with heat or flow rate in residential buildings in Korea. There are two kinds of apparatus to measure heat consumed at each households, i.e., heat meter and hot water flowmeter. Contrast to the most of buildings with hot water flowmeter well being used for rating, heat meters have been used only 42.6% in the buildings with central heating system. But there is a critical problem in the course of using hot water flowmeter for heat rating, yielding distorted and unfair result which is different from the real value of heat supplied. Experiments with several parameters were carried out in this study to analyze this phenomenon quantively and alternative methods were proposed for rational heat rating.

• 농촌지도와개발
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• 제25권1호
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• pp.1-13
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• 2018

This study aims to identify factors affecting the acceptance intention of cultivating a new Italian ryegrass(IRG) variety using partial least square structural equation modeling(PLS-SEM) and find priority to maximize the acceptance intention of new IRG variety using importance-performance matrix analysis(IPMA). The data were collected on a seven-point Likert-type from 188 farm households located in Korea central region for two months. As a major result of PLS-SEM, expected effect significantly affected acceptance intention. The IPMA also showed expected effect should be considered as the most important factor to improve the acceptance intention. This study suggested the new technology distributors should scientifically prove and actively promote the effects such as increase in farm income, productivity improvement, labor saving and management efficiency caused by planting new IRG variety.

• 한국대기환경학회지
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• 제29권5호
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• pp.668-681
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• 2013

The Korean government announced a national mid-term target to reduce 30% of greenhouse gas (GHG) emissions from business-as usual (BAU) level by 2020 in a voluntary and independent manner. In this study, we examined the $CO_2$ mitigation potential and conducted an economic effect analysis of green living actions in households in Korea. We also proposed some ways to implement green life to achieve the national target. If green lifestyle takes root in households nationwide, $CO_2$ emission would be reduced to 27.3% of the emission in 2007. This would save the country about 4.93 trillion won per year and each household could save about 300,000 won per year, which accounts for about 0.5% of GDP (as of 2007). Considering the five-year plan for green growth to invest 2% of GDP in green growth every year, this would not only reduce the economic burden on households, industries and the country but also increase economic growth potential by reinvesting the saved resources into green growth. Heating and lighting would be the greatest contributor to GHG mitigation of green life in the residential sector. It means we could achieve the national goal by reducing unnecessary heating and lighting and using energy-saving electric home appliances. The implementation of green living actions would reduce a significant amount of greenhouse gas emissions, ultimately relieving the burden on businesses to reduce GHG emissions. And it is one of the most cost-effective mitigation tools in order to achieve the mid-term GHG mitigation goal.

• 한국지리정보학회지
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• 제12권3호
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• pp.152-163
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• 2009

본 연구는 부산시 서 금사재정비촉진지구를 대상으로 재정비촉진계획 수립과정에서 가구별 사업에 대한 이해도, 찬반 및 재정착 의사와 관련된 요인 등을 중심으로 가구특성 파악 및 유형화를 실시하였다. 이를 위해 본 연구는 통단위의 공간분석단위를 설정함으로써 대규모의 개발대상지를 세분화하여 각 특성요인 별 비교분석과 세분화된 지역별 특성을 활용한 소규역 유형화를 통해 대상지의 세부사업구역 설정 및 촉진계획수립과정에 보다 많은 주민의견과 이해를 공간위치와 함께 체계화된 정보로 제공하고자 하였다. 사업 지구내 가구특성 및 유형별 분석결과는 첫째, 지구차원의 특성, 둘째, 찬반요인과의 상관성 분석, 셋째, 지구내 세부지역간의 차별성 분석의 세 단계로 분석되었다. 더불어 전체적인 지구내 가구특성과는 다른 특성을 보이는 지역들을 찾아내고 그 원인을 규명하기 위해 이변량 단계구분도 작성 및 군집분석 등을 실시하여 통 단위로 분석된 가구 특성을 바탕으로 특징적인 세부 지역들을 도출하여 그 공간위치와 함께 지구내 분포특성을 분석하였다.