• 한국치위생학회지
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• 제12권6호
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• pp.1212-1220
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• 2012

Objectives : This study is designed to survey of proper practice of toothbrushing place in elementary school, middle school and high school in some part of Gyeonggi-Do, and will be utilized for toothbrushing place management. Methods : It was randomly selected, 8 elementary schools, 6 middle school and 6 high school in Gyeonggi-do, surveyed whole students. Survey duration was from May 11th to May 20th in 2011. The surveying paper was consisted of questions of general characteristics, right practice of toothbrushing and toothbrushing after lunch etc. It was done under teacher's control. The Data was analyzed with SPSSWIN 18.0. Results : Students did toothbrushing 2 times/day. It wasn't done by Elementary students of 56.3%, middle school students of 68.5%, high school students of 39.3%. It was dominant reason for no brushing that Carrying toothbrush and toothpaste was annoying. When students washed their hands and rinsed their mouth, they used toilet facuet in over than 90% schools. Satisfaction ratio was very low in elementary, middle, high schools. 60% of students wanted to get mouth rinsing place in each school or separately nearby toilet. Conclusions : It was thought by 60% students of elementary, middle, high school that toothbrushing after meals was most important activity. But It was not well done after lunch. When whole student did toothbrushing together, they couldn't use mouthrinsing place comfortablely. There were no keeping places for toothbrushes. So more attention should be payed to make plenty mouthrinsing places and manage them well.

• Journal of Nutrition and Health
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• 제34권6호
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• pp.678-687
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• 2001

This study was carried out to compare the dietary behaviors and nutrient intakes among the students(13 years of age) of middle schools between in industrial complex and in non-industrial complex. The subjects of each group were composed of 192 male and female teenagers living in Ansan city in Korea, and this study was performed by questionnaire and dietary survey. As a result, mothers' education level and monthly family income were lower in industrial complex-families(ICF) than those in non-industrial complex-families(NICF). The subjects in ICF took dinner more irregularly than did those in NICF. The subjects in ICF skipped the meals often as there was no person preparing meals'. The subjects in ICF tended to take ra-myun, cookie or bread more often as a lunch, and they considered size and price of snack more imporandy when they chose snack than those in NICF. And the subjects in ICF had lower degree of flood habits and satisfaction on their meals than those in NICF. The daily intakes of calorie, vitamin B$_2$, calcium and iron of subjects of two groups were lower than the Korean RDA, and these intakes were lower in ICF than in NICF. These findings show that dietary behaviors and nutrient intakes were poor among the students of middle schools in ICF, in part it seems to be related to the fact that the group of ICF has low family income and mothers of ICF have the jobs that are finished late or irregularly. Therefore, these results underscore the need to provide the nutritional education for the students of middle schools and their mothers in ICF with respect to the importance of optimal nutrition through sound dietary behaviors during the adolescence.

• 한국대기환경학회지
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• 제22권6호
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• pp.929-939
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• 2006

In this study, the concentrations of major odorous compounds including reduced sulfur compounds (DMS, $CS_2$, and DMDS) and aromatic VOC (benzene, toluene, xylene, etc.) were measured continuously using an on-line GC analytical system. Our measurements were made from a residential area of Ansan city during about two weeks period of October, 2004. The highest mean concentrations of reduced S and VOC were recorded as 56.9 ppt of DMS and 21.7 ppb of toluene, respectively. The results of this study generally show that the pollution levels for both types of chemicals are significant relative to previous measurement results reported from comparable sites, if the results are compared simply in terms of the magnitude of the measured concentration data. Moreover, when the relative importance of different compounds is compared in terms of the odor strength, it indicates that the contribution of reduced S compounds may be much more important than that of VOC in the study area.

• 한국가스학회지
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• 제2권3호
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• pp.60-69
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• 1998

저온 플라즈마를 이용한 메탄 직접 전환반응은 진공에서 메탄만을 원료로 마이크로웨이브나 라디오 주파수(R.F)등의 에너지를 가하여 플라즈마 상태로 반응시켜 에틸렌, 에탄, 아세틸렌 등의 C2 화합물을 생성하는 방법이다. 이러한 직접적인 메탄 전환의 장점은 산소를 가하지 않으므로 산소에 의한 부생성물이 없는 점과 저온 플라즈마를 이용하므로 저에너지 공정이라는 것을 들 수 있다. 본 연구에서는 마이크로웨이브와 라디오 주파수(R.F)를 이용하여 저온 플라즈마 반응으로 메탄 전환반응을 수행하였고 일반적인 플라즈마 반응에 사용되는 관형반응기 외에도 독자적인 시리즈 반응기를 설계하여 성능실험을 수행하였다. 또한 플라즈마와 촉매를 이용한 반응실험을 수행 촉매의 영향을 확인하였다. 저온 플라즈마를 이용한 메탄 전환 반응의 특성을 분석한 자료는 공정의 실용화를 위한 반응기 설계 및 반응속도를 분석하기 위한 기초자료로 기대된다.

• 산업경영시스템학회지
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• 제46권4호
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• pp.124-132
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• 2023

In order to support start-ups effectively with limited resources, it is necessary to provide support tailored to start-up companies. Businesses that are operating in local incubation centers may have different demands for the support depending on the region characteristics. This study was worked on companies that have entered into the incubation center 'Youth Cube', which is operated by Ansan City. We investigated the perception of importance in the field of support to identify support policy priorities, and the satisfaction level of each field of support currently supported. Then We conducted an IPA analysis to derive the direction of support. The Ansan area has regional characteristics that it is located in the metropolitan area with well-equipped start-up infrastructure and many innovative institutions, As a result of the importance survey, technology commercialization was recognized as the most important, and education/mentoring was recognized as the least important. Satisfaction with the space and facilities that can be used free of charge was the highest, and the satisfaction was the lowest for entrepreneurship education/mentoring, as was the degree of importance. In addition, according to each quadrant, we derived support that should be maintained, support that should be intensively improved, support that should be given a low policy priority, and support directions that should be kept in mind to avoid excessive support.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 추계학술발표회 논문집
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• pp.275-279
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• 2004

This study was done to detect the topographic and terrain change of the vicinity of the west coast. To make the basic map of the change in topology and terrain, the mosaic images were made using the images from the satellite, which were given the geometric correction based on the GCP (Ground Control Point) and DEM (Digital Elenation Model) data. The accuracy of the images was examined by .empaling them with CCP through 1:25,000's digital map. After that, among the resultant images of the 1970s and 2000s, those of Sihwa, Hwaong and Ansan, the lands reclaimed by drainage were compared to observe the change in the area. From this study, the accuracy of the images of the west coast from satellite could be acquired and the change of the topology and terrain was detected effectively. From the results, it was known that, in case of the land the topological change was not so big due to the development in the reclaimed land or the bare land. In Sihwa, the size of the land was increased 180 $\textrm{km}^2$ and that of the seashore was decreased 110 km. in Hwaong the size was increased 50 $\textrm{km}^2$ and in Ansan the city space was increased 71 $\textrm{km}^2$ due to the formation of the industrial complex.

• 한국대기환경학회지
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• 제21권1호
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• pp.107-118
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• 2005

In this study, the concentrations of major odorous compounds including reduced sulfur compounds (OMS, CS$_2$, and DMDS) and aromatic VOC (benzene, toluene, xylene, etc.) were measured continuously using an on-line GC analytical system. Our measurements were made from a residential area of Ansan sity during about two week period of October, 2004. The highest mean concentrations of Sand VOC were found as 56.9 pbb of DMS and 21.7 ppb of toluene, respectively. The results of this study generally show that the pollution levels for both types of chemicals are significant relative to previous measurement results reported from comparable sites, if the results are compared simply in terms of the magnitude of the measured concentration data. Moreover, when the relative importance of different compounds is compared in terms of the odor strength, it indicated that the contribution of reduced S compounds may be much more important than that of VOC in the study area.

• 환경영향평가
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• 제7권1호
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• pp.93-107
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• 1998

In this study, the indicator is established by the human activities which cause the load of the environment, the effect of the human activities on the environment, the state of the natural environment in the city, and the effort on improving this state. And this indicator is based on the DPSR(Driving Force, Pressure, State, Response)framework which combines the PSR framework of GECD with the DSR framework of UNCSD. Coexistent indicators between men and nature among the established environmental indicators apply to the case cities such as Suwon, Songnam, Bucheon, Ansan and the results are analyzed in detail. The environmental indicators established in this study will be the concrete and persuasive means which can evaluate the possibility of the sustainability that is the paradigm of the new city development when the environmental quality or state of the existing cities is evaluated.

• 환경위생공학
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• 제17권2호
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• pp.63-70
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• 2002

We investigated the concentration degree of VOCs for ambient air in the air environment control area of Kyonggi-do in 2001. The VOCs showing higher concentration were in the ascending order of Toluene > n-Butane > 1-Butene > Benzene > n-Hexane. The concentration distribution ratio mentioned above showed almost same pattern in each city. The relative concentration ratio of Benzene, Toluene, Ethylbenzene, Xylenes which are aromatic VOCs were 1 : 6.3 : 0.6 : 1.6. It was similar to the pattern in 1999 but different from the pattern in 2000. In the aspect of seasons, the highest B.T.E.X concentration was indicated in fall and in the aspect of areas, the higher concentration showed in the ascending order of Buchon > Ansan > Kwangmyong > Shihung > Sungnam. The average concentration of target VOCs for ambient air in the air environment control area of Kyonggi-do showed lower concentration than the metropolis of Seoul but higher concentration than Kwang-ju city and Dae-gu city. The amount of total VOCs was increasing, comparing with it last year and the more increasing tendency is anticipated so that it will need to establish the proper regulative criteria.

• 한국조경학회지
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• 제41권6호
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• pp.185-198
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• 2013

2002년 월드컵 응원의 배경이 되었던 서울시청 앞 교통광장이 설계경기를 거쳐 서울광장으로 조성되면서 광장에 대한 다양한 담론이 논의되는 계기가 마련되었다. 이어서 2009년 조성된 광화문광장 역시 우리 광장문화에 대한 도시 상징적 기능, 인문적 고찰, 도시민들에 의한 활용방식 등 다방면의 논의를 이끌어내면서 학문적 관심의 대상이 되고 있다. 우리에게 광장 문화가 있느냐, 우리 광장의 모습은 어떠해야 하는가 라는 질문의 대답은 여전히 탐색 중인 것으로 판단된다. 왜냐하면 역사적 흐름에서 광장문화의 발현과 이어져오는 광장 공간 양식이 뚜렷하게 공감되지 않은 상태에서 서구적 공간 양식 등이 참조되고, 광장의 정체성과 관련된 사회적 합의를 도출하지 못한 상태에서 광장이 조성되었다는 의견이 통용되기 때문이다. 우리 광장의 모습이 이러해야 한다는 원칙은 정해진 바 없다. 서울광장과 광화문광장의 출현이 이러한 논의를 촉발하고 있는 현상은 긍정적이라고 볼 수 있다. 다양한 층위에서 논의를 통해 광장 공간과 문화에 대한 공감을 지속적으로 구축할 수 있다면 우리는 머지않아 독창적인 공간문화를 정립할 수 있을 것이다. 이러한 맥락에서 안산 광덕로 광장 설계의 의의를 찾고자 한다. 2009년 현상을 통해서 당선된 본안은 2010년 말에 준공되었다. 우리 광장의 문화와 공간구성에 대한 담론 발생을 염두에 두면서 광덕로 테마광장의 설계내용을 중심으로 동시대 광장의 역할과 설계 쟁점을 펼치면서 아직 진행 중이라고 판단되는 우리 광장 구성의 방향성에 대해서 논하고자 한다.