• 한국지하수토양환경학회지:지하수토양환경
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• 제16권5호
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• pp.53-66
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• 2011

Groundwater which infiltrated in recharge areas discharges in the forms of evapotranspiration, baseflow to streams, groundwater abstraction and eventually flows into the sea. This study characterized radon-222 concentration and electrical conductivity (EC) in coastal groundwater discharge, well groundwater, Ilkwang Stream water, and seawater in the coastal area of Busan Metropolitan City and subsequently estimated groundwater discharge rate to the sea. The median value of Rn-222 concentration is highest in well groundwater (18.36 Bq/L), and then decreases in the order of coastal groundwater discharge (15.92 Bq/L), Ilkwang Stream water (1.408 Bq/L), and seawater (0.030 Bq/L). The relationship between Rn-222 concentration and EC values is relatively strong in well groundwater and then in seawater. However, the relationship is not visible between coastal groundwater discharge and Ilkwang Stream water. The groundwater discharge rate to the sea is estimated as $3,130m^3$/day by using radon mass budget model and $16,788m^3$/day by using Darcy's law.

• 한국지리정보학회지
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• 제9권1호
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• pp.149-157
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• 2006

본 연구는 부산시의 GIS 데이타베이스를 활용하여 먼저, 입지포텐셜 분석을 위한 지표를 설정하여 각 지표별 Rank-Map을 작성하였다. 다음으로 각 상업 업무시설이 입지할 가능성을 예측할 수 있는 입지 포텐셜 ($P_i$)을 분석하여 제안하였다. Rank 1, 2로 분류되는 존의 건물용도 현황을 보면, 상업시설 용도가 차지하는 비율이 높음을 알 수 있었다. Rank 4~7까지의 존은 환경보전적 차원에서 비 상업계 용도지역이 지정되고 관리될 필요가 있다고 사료된다. 또한, 본 연구에서 제안한 입지 포텐셜은 용도지역 지정시 상업계 용도지역 지정의 기초자료로서 활용할 수 있다고 사료되어진다.

• 한국재난정보학회 논문집
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• 제14권1호
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• pp.1-8
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• 2018

본 연구에서는, 재난대응의 문제가 사회문제로 대두되어 가고 있는 상황에서 재난대응과 관련된 부산광역시의 재난관리 조례와 16개 구 군 재난관리 조례를 분석하였다. 분석모형으로는 지방자치단체의 재난관리 조직시스템 평가모형(Yun, 2011)인 유기성, 전문성, 통합성, 현장대응성의 4가지 차원을 활용하였다. 그 결과, 현장대응성과 관련된 조례조항이 가장 많이 확인되었고 그 다음으로 유기성, 전문성, 통합성 순이었다. 개선방안으로는 유기성과 통합성을 보완하기 위한 민관의 적극적인 정보공유의 활성화와 업무체계의 일원화의 필요성 등이 제시되었다.

• 한국IT서비스학회지
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• 제12권1호
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• pp.1-14
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• 2013

The government has implemented operating the bus information terminal (hereinafter, 'BIT') to use by building it at a major bus station to solve the problem of traffic congestion. Busan Metropolitan City has been continuously expanding the installation of 'BIT' since 2003. However, there are few research on the factor to use and satisfaction survey on 'BIT' from the perspective of the users. This study, in an effort to inquire into the 'BIT' utilization factor and its vitalization plan, conducted a face to face survey of 172 citizens who had the experience in the 'BIT'. The result of the data analysis showed that usability, convenience, and availability were the critical factors for a BIT use. In addition, the general intention to use 'BIT' was found to be very high as much as 90.7%. The contributions of this study are as follows. The academic contributions is that it proved the relationship between usability, convenience and the intention to use suggested by the information technology acceptance model is supported even in case of 'BIT.' For the practitioners this study provides ground data for a local government to make a plan of a BIT extension.

• 한국도로학회논문집
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• 제17권6호
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• pp.65-73
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• 2015

PURPOSES : This study tries to develop the accident models of 4-legged signalized intersections in Busan Metropolitan city with random parameter in count model to understanding the factors mainly influencing on accident frequencies. METHODS : To develop the traffic accidents modeling, this study uses RP(random parameter) negative binomial model which enables to take account of heterogeneity in data. By using RP model, each intersection's specific geometry characteristics were considered. RESULTS : By comparing the both FP(fixed parameter) and RP modeling, it was confirmed the RP model has a little higher explanation power than the FP model. Out of 17 statistically significant variables, 4 variables including traffic volumes on minor roads, pedestrian crossing on major roads, and distance of pedestrian crossing on major/minor roads are derived as having random parameters. In addition, the marginal effect and elasticity of variables are analyzed to understand the variables'impact on the likelihood of accident occurrences. CONCLUSIONS : This study shows that the uses of RP is better fitted to the accident data since each observations'specific characteristics could be considered. Thus, the methods which could consider the heterogeneity of data is recommended to analyze the relationship between accidents and affecting factors(for example, traffic safety facilities or geometrics in signalized 4-legged intersections).

• 한국환경과학회지
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• 제15권11호
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• pp.1053-1059
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• 2006

This study was performed to investigate the possible uses of waste sludge for the removal of heavy metal ions. The adsorption experiments were conducted with wastes such as sewage treatment sludge, water treatment sludge and oyster shell to evaluate their sorption characteristics. Heavy metals selected were cadmium, copper and lead. in the sorption experiments on the sewage treatment sludge, water treatment sludge, oyster shell and soil, sorption occurred in the beginning and it reached equilibrium after 40 minutes on the oyster shell and 4 hour on the sewage treatment sludge and water treatment sludge. Results of Freundlich isotherms indicated that sewage treatment sludge could be properly used as an adsorbent for heavy metals and sorption strength of heavy metals was in the order of Pb > Cu > Cd. In the influence of pH on the adsorbents, sorption rate was more than 80% in pH 4 and most of heavy metals were adsorbed in pH 9. Adsorption rate of Cd decreased with decreasing pH and then adsorption rate of Cu was lower in soil.

• 한국환경과학회지
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• 제21권9호
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• pp.1069-1078
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• 2012

This study was performed to evaluate the asbestos exposure levels and to calculate excess lifetime cacer risks(ELCRs) in asbestos-containing buildings for maintenance and management. The range of airborne asbestos concentration of 33 buildings was 0.0018 ~ 0.0126 f/cc and one site exceeded indoor air-quality recommended limit 0.01 f/cc. And ELCRs based on US EPA IRIS(Integrated risk information system) model are 1.5E-06 ~ 3.9E-05 levels, and there was no site showed 1.0E-04 (one person per million) level or more, and 11 sites showed 1.0E-05 (one person per 100,000 people) level or more. To prevent the release of asbestos fibers, it needs operation and maintenance of asbestos-containing building materials, and there are some methods such as removal, repairment, enclosure and encapsulation. In conclusion, a risk-based air action level for asbestos in air is an appropriate metric for asbestos-containing building management.

• 식물분류학회지
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• 제41권2호
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• pp.164-170
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• 2011

부산광역시와 제주도에서 대극과의 미기록 귀화식물 2종을 발견하였다. Euphorbia heterophylla L. (아메리카대극)은 부산광역시 동래구 안락동 수영강변 공원에서 확인되었으며, E. dentata Michx. (톱니대극)과 비교하여 원줄기 잎은 호생하며, 소총포의 선체 입구는 원형인 특징으로 구별된다. 또한 Euphorbia hirta L. (털땅빈대)은 제주특별자치도 서귀포시 예래동 예래마을에서 확인되었으며, E. hypericifolia L. (큰땅빈대)와 비교하여 삭과에 털이 있는 특징으로 구별된다.

• 보건의료산업학회지
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• 제13권4호
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• pp.163-177
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• 2019

Objectives: The purpose of this study was to identify the predictors of quality of life (QOL) for terminal cancer patients admitted into the community health center, and to establish a hypothetical model to explain and verify causative relationships among the variables. Methods: Data were collected from January 2015 to June 2016. Participants were 237 registered patients in Busan Metropolitan City hospice & palliative care center. The descriptive and correlation statistics were analyzed using the SPSS/WIN 24.0, and the structural equation modeling procedure was performed using the AMOS 24.0 program. Results: The results of this study showed that the physical symptoms of terminal cancer patients were the most direct factors affecting the QOL, and satisfaction with health care services has a direct effect on the QOL. Conclusions: The study contributes to drawing up measures to improve QOL for terminally ill cancer patients who are living in the end-of-life section of the community by revealing the causal relationship to the QOL for terminal cancer patients.

• 수산해양교육연구
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• 제26권6호
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• pp.1245-1260
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• 2014

This paper is to analyze the size of Busan Metropolitan City Office of Education Special Account and Educational finance Changes based on the welfare types from 2009 to 2013. It also identifies the impact on welfare finance education programs that target low-income students. The size of Education welfare finance was increased to 355.3 billions (2013) from 90.9 billions (2009), with the last 5 years average annual growth rate as high as 41.9%. But there has been relative decrease in the size of selective welfare budget for low income students such as tuition assistance & IT support to low-income and vulnerable groups, rural schools support to improve facilities, education welfare priority program. The finding suggests that the size of selective welfare budget should not be decreased due to universal education welfare policy. If it is to expand the universal education welfare, then there should be redesigning of local educational finance and further revenue for local education finance to keep the budget for the education welfare target groups.