• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.287-288
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• 2020

우리나라의 무단 투기된 쓰레기양은 2019년 2월 기준 33만 톤이며 이를 단속하기 위해 상용화된 쓰레기 무단투기 단속 시스템은 센서를 이용하여 시스템 주변에 사람이 지나가면 영상을 촬영하기 때문에 쓰레기 무단투기자 뿐 아니라 해당 시스템 주변을 지나는 모든 사람을 촬영하기 때문에 불법 쓰레기를 배출하는지 해당 영상을 사람이 일일이 다시 분석해야한다. 본 논문에서는 쓰레기 투기 행위 이미지를 바탕으로 학습시킨 딥러닝 실시간 객체인식 알고리즘인 YOLO-v4를 활용하여 실시간으로 쓰레기 무단투기를 단속하는 시스템을 제시한다.

• Journal of the Korea Organic Resources Recycling Association
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• v.20 no.1
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• pp.31-40
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• 2012

In order to making resources for the organic wastes, it is very important to understand for the life cycle of wastes before the physicochemical analysis and engineering technology. Therefore we try to fine the solution through the interdisciplinary consilience between natural science and social science for the management of refuge in summer resort. Summer visitors of beach answered that fly tipping of refuse was 65.56% and insufficient separation was 17.78% about the survey. But insufficient separation was 42.5% and fly tipping was 37.5% in valley. The survey for the effective methods at reducing refuse was represented that campaign and teaching was 47.78%, fine was 23.33% and using the standard bags was 18.89% in beach. Campaign and teaching was 37.5%, using the standard bags was 37.5% and fine was 15% in valley. Bulk density of refuse in gyeongpo beach was measured in $74kg/m^{3}$. This value was three times as much low than municipal solid wastes. Moreover, the composition of refuses in beach showed that combustible materials was 81.1% and incombustible materials was 18.9%. Moisture, ash and combustibles were analyzed 19.0%, 9.2% and 91.8% respectively.

• Korean Journal of Environment and Ecology
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• v.7 no.2
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• pp.221-230
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• 1994

Visitors to Tokyusan National Park were surveyed from August 9 to 12 During this time, 443 vistors were contacted. Of those individuals, 68.7% were males. 27.5% of respondents reported that they had gone beyond high shcool, and over one-half (64.9%) had gone as far as college. 54.7% were 20 years of age. 42.9% of the survey respondents were making their frist trip to Kuch'ontong and 67.9% to Muju Resort. The largest percentage of respondents were reported that they visited Tokyusan National Park for rippling. In group type, majority were traveling with their friends or family. In activity characteristics, 83.4％ were staying over nights visitors, and over 50% mentioned staying at private houses or hotels. In six types of normative violations, major reasons of littering behavior were unintentional violation and releaser-cue violation. Most respondents who witness other visitors' littering were not likely to intervene to stop their visitors' depreciative behavior(Bystander intervention Behavior). Most of visitors want to get more information from national park office.

• Korean Journal of Environment and Ecology
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• v.9 no.2
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• pp.187-196
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• 1996

Visitors to O-Daesan National Park were surveyed from July 28 to 31 in 1995. During that time, 392 visitors were contacted. Of those individuals, 52% were males and 48% of females. 68% of respondents reported that they had gone as far as college. 50% were 20 years of age. the largest percentage of respondents were reported that they visited O-daesan Nat'l Park for enjoying natural landscape. In group type, 40% were traveling with their family and 36% with their friends. In activity characteristics, 38% were 1 day-2nights visitors and 37% were day-time visitors. 45% did cooking and 21% were mentioned carrying in their own food. Generally most respondents were perceived that the environmental pollution. Most respondents were not likely to intervene to stop other visitors' depreciative behavior(Bystander intervention behavior). And their perceived broadcasting for guidance of use in National Park.

• Journal of Korea Soil Environment Society
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• v.4 no.1
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• pp.75-83
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• 1999

The purpose of this study is to investigate the chemical characteristics of the leachate for the open(illegal) dumping waste. In this study, the open dumping waste were mixed with 0, 5, 10, 15% of bentonite in each Iysimeter as a rate of weight. The simulation was evaluated by CODcr, ${NO_3}^-$, ${SO_4}^{2-}$, $Cl^-$ and heavy metals in leachate. As a result, the mixed waste with bentonite in all Iysimeters showed the reduction of CODcr and heavy metals were hardly detected. The removal rate of ${NO_3}^-$, ${SO_4}^{2-}$, $Cl^-$ was increased with the mixing rate of bentonite.

• Environmental and Resource Economics Review
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• v.24 no.4
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• pp.747-761
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• 2015

This paper investigates the impact of an increase in unit price of solid waste collection on demand for alternative solid waste disposal types. I control for other variables affecting the demand and employ both community and time fixed effects models in the estimation of each reduced-form demand functions. Estimation results show that an increase in unit price reduces the demand for garbage bag collection services of non-food solid wastes while it increases the demand for food wastes and source-separated recyclables. These results imply that reduction in the demand for non-food solid wastes collection is mainly achieved by increasing the amount of recyclables and food wastes collected. However, it appears that an increase in unit price increases the total amount of solid wastes generated. This suggests that price incentive effects are offset by the decrease in source-reduction efforts because of feedback effects resulting from the increase in recycling, food waste separation, and illegal disposal of wastes.

• Korean Journal of Environment and Ecology
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• v.12 no.4
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• pp.389-397
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• 1999

The purpose of this study was to analyze visitors' behavior in Hallyo-Haesang National Park, Korea. To accomplish the purpose, questionnaire survey, using self-developed questions, was employed from August 21 to 23 in 1998. 303 samples for the survey were selected in 4 different zones(Koje, Tongyong, Namhae, and Odongdo) within park boundary. As the results, socioeconomic characteristics, such as gender, education and income level, age, and others, were showed similar trends with results from visitor surveys in other national parks. Most respondents were pointed out unintentional violation due to habit as a major reason of littering. And, majority of respondents didn't know the Clean-up-Time Movement Program in this park. In addition, ecosystem condition, natural landscape, trash problem, safety, and kindness of park rangers were recognized as the major influencing factors that can affect to visitors' recreation experience in this park but existing conditions for each influencing factor were evaluated lower than level of their expectation. Overall level of recreation satisfaction in Hanryohaesang national park were, however, perceived in the affirmative.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.1
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• pp.181-189
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• 2013

Since conventional image surveillance systems employ methods for video recording and transmission, a huge amount of data is transferred and stored so that those systems are overloaded. However, for capturing and recording the scenes of illegal trash throwing and unpermitted parking, it is sufficient to use a surveillance system using images. In this paper, we propose a surveillance system using images and motion detection sensors. Our system recognizes the occurrence of movement events through changes of sensors, captures still images of the region under surveillance, and stores them into the database at a remote site. The system proposed herein provides a functionality to detect the occurrent of those events more accurately and faster than previous video-based systems, and has an advantage of reducing the amount of data significantly. Also, our system is agent-based, it enables us to add new modules or modify existing modules easily later.

• Journal of Cadastre & Land InformatiX
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• v.47 no.1
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• pp.5-14
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• 2017

Korea, which has undergone a rapid urbanization, faces various problems such as the management of facilities, safety, environment and transportation. To solve civil complaints, local governments receive electronic complaints, but complaints are increasing. Therefore, this study conducted the spatial distribution pattern analysis and the trend analysis by presenting location data on spatial information through Geo-coding by collecting electronic civil petition data over the last 10 years targeting Jinju city. Using the ARIMA model, this study predicted the occurrence of complaints over the next two years (2016~2017) through a time series forecast analysis. As a result, the complaints related to illegal parking were the highest, the complaint related to noise was the second highest, and the complaints related to illegal garbage dumping was the third highest. In addition, the analysis of the spatial distribution pattern shows that the largest hot spot was formed in the central commercial district every year. As a result of the time series forecasting analysis for the crackdown of the illegal parking, complaints increased slightly. To compare the predicted value and the actual data showed a similar pattern. It is judged that this study will be utilized to establish effective countermeasures against civil complaints.

• Korean Journal of Environment and Ecology
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• v.8 no.2
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• pp.160-166
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• 1995

Visitors to Chuwangsan National Park were survayed from August 3 to 5 n 1994. During this time, 346 visitors were contacted. Of those individuals, 65% were males. 63% of respondents reported that they had gone as far as college. 48% were 20 years of age. 97% of the survey respondents had experience to visit other national parks. The largest percentage of respondents were reported that they visited Chuwangsan Nat'1 Park for enjoying natural landscape. In group type, 50% were traveling with their family and 36% with their friends. In activity characteristics, 51% were day-time visitors, and 18% mentioned carrying in their on food. Generally most respondents were very interested in the environmental problem in national parks. The majority of visitors perceived that the environment of Chuwangsan Nat'1 Park were good enough. In six types of normative violations, the major reasons of littering were unintentional violation and releaser-cue violation. Most respondents were not likely to intervene to stop other visitors' depreciative behavior (Bystander intervention behavior). In two dilemmas, the more likely the intention to obey a regulation the less likely the intention to disobey a regulation, and vice-versa.