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박막분산탐침(diffusive gradient in thin film probe)의 수중 생물학적 이용가능한 중금속 측정 적용
홍용석 ( Yong Seok Hong ) 한국물환경학회 2013 한국물환경학회지 Vol.29 No.5
This review paper summarizes the theory, application, and potential drawbacks of diffusive gradient in thin film (DGT) probe which is a widely used in-situ passive sampling technique for monitoring inorganic contaminants in aquatic environments. The DGT probe employs a series of layers including a filter membrane, a diffusive hydrogel, and an ionic exchange resin gel in a plastic unit. The filter side is exposed to an aquatic environment after which dissolved inorganic contaminants, such as heavy metals and nuclides, diffuse through the hydrogel and are accumulated in the resin gel. After retrieval, the contaminants in the resin gel are extracted by strong acid or base and the concentrations are determined by analytical instruments. Then aqueous concentrations of the inorganic contaminants can be estimated from a mathematical equation. The DGT has also been used to monitor nutrients, such as PO4 3-, in lakes, streams, and estuaries, which might be helpful in assessing eutrophic potential in aquatic environments. DGT is a robust in-situ passive sampling techniques for investigating bioavailability, toxicity, and speciation of inorganic contaminants in aquatic environments, and can be an effective monitoring tool for risk assessment.
만성질환자들의 한의약의료서비스 이용과 결정요인 -제주도 보건소이용 환자를 중심으로-
오종수,한동운,임문혁,홍용석,이영호,노홍인,Oh, Jong-Soo,Han, Dong-Woon,Im, Mun-Hyuk,Hong, Yong-Seok,Lee, Young-Ho,Noh, Hong-In 대한예방한의학회 2009 대한예방한의학회지 Vol.13 No.3
Background : Traditional Korean medicine(TKM) has gained in popularity among chronic patients in recent years. The use of TKM among patients with chronic diseases is common, with about two thirds of patients using some form of TKM in Korea. Objectives : The purpose of this study is to analyze the use of TKM and determine what factors affect to use TKM among patients with chronic diseases. The study also aims to provide information on TKM therapies and assist therapy selection among various TKM therapies for patients with chronic diseases. Methods : The design of the study was descriptive cross-sectional, and data were collected using a 21-item questionnaire. This study was conducted with subjects with confirmed diagnosis of chronic diseases, who live in Jeju Province, Korea. Results : Among the participants, past or current TKM use was 66.7%, with a statistically significant difference in gender and level of health status groups(p<0.05), but no difference in age, marital status, education, occupation, and income groups. The most common therapies of TKM used by the patients included acupuncture(51.1%), physiotherapy(16.8%), cupping(13.5%), and herbal medicine(4.8%). The main benefits from TKM perceived by the patients were chronic diseases management and health promotion. In a logistic regression analysis, significant influencing factors related to TKM use were gender, family income level, the extent of recognition of efficacy, heath status, and health security program. Conclusions : In this study the socio-demographic and health status, recognition of TKM efficacy factors associated with TKM use among patients with chronic diseases were similar to those found in the general population. The findings suggest that due to the relatively high use of TKM among patients with chronic diseases in Korea, this topic should be taken into account in the development of a holistic approach for patients with chronic diseases and an efficient chronic disease management system. Additionally proactive and consistent management of TKM is necessary in the health care system in Korea.
SWAT 모형을 이용한 보령댐 도수로 운영 방안 및 정책 연구
박범수 ( Bumsoo Park ),윤효직 ( Hyo Jik Yoon ),홍용석 ( Yong Seok Hong ),김성표 ( Sung Pyo Kim ) 한국물환경학회(구 한국수질보전학회) 2020 한국물환경학회지 Vol.36 No.6
While industrialization has provided in abundance, the pollution it creates has caused untold damage to the environment, increasing the frequency and severity of natural disasters through changes in global climate patterns. The World Risk Forum’s (WEF) World Risk Report presented the results of a survey of experts from around the world detailing the most influential risk factors over the next decade. Notably, the failure to respond to climate change ranked first and the global water crisis third. The extreme drought in the western Chungnam province was unexpected in 2016. At the time, the water level of Boryeong Dam was drastically decreased due to receiving less than half the average recorded rainfall in the region that year. The Boryeong Dam diversion pipeline has the capacity to solve the water shortage problem between these two regions by providing water from Geumgang to the western part of Chungnam, including Boryeong City. Current weather trends suggest drought is likely to continue in western Chungnam, which uses the Boryeong Dam as an intake source. This makes it necessary to operate Boryeong Dam diversion pipeline in an efficient and effective manner. SWAT is a watershed scale model developed to predict the impact of land management practices on water. The SWAT model was used in this study to evaluate the adequacy of the Boryeong Dam diversion pipeline operational plan by comparing it to present Boryeong Dam diversion pipeline operation. By investigating the number of days required to reach each reservoir stage, we determined that the number of days required to reach the boundary stage was less than that of the current operation. This determination accounts for the caveats that the Boryeong Dam waterway was not operated and only one pump will be operated from October to May of next year. As our results suggest, the most stable operation scenario is to operate two pumps at all times. This can be accomplished by operating two pumps from the caution stage to increase the number of pumps whenever the stage is raised. In addition to the stable operation of the Boryeong Dam pipeline, policy considerations are required with regard to imposing a water use charge on users of the Boryeong Dam region.
예술작품의 원작으로 구성된 전시와 원작을 재매개한 디지털 전시의 미적 경험에 대한 상이성 연구
이보아(Boa Rhee),최수민(Sumin Choi),홍용석(Yong Seok Hong) 한국콘텐츠학회 2017 한국콘텐츠학회논문지 Vol.17 No.5
본 연구는 전시매체적 상이성에 따른 미적 경험을 비교하기 위해, 문헌연구와 <풍경으로 보는 인상주의展(이하 인상주의전)>과 <모네, 빛을 그리다展(이하 모네전)>의 사용자 경험에 대한 정량적 연구를 병행했다. 감상태도의 관점에서, 두 전시에서 공통적으로 두 가지의 지각방식이 공존했다. 인상주의전에서는 집중적 지각이 우세했고, 모네전에서는 분산적 지각이 높았지만, 모네전에서만 집중적 지각의 전시만족도 및 전시몰입도에 대한 영향력이 입증되었다. 관람객 역할 측면에서는 두 전시에서 공통적으로 수동적 역할에 대한 비중이 높았으며, 관람객 역할은 지각방식 뿐만 아니라 전시만족도 및 전시몰입도에 영향을 미치지 못했다. 인상주의전의 경우, 미적경험요소에 대한 평가가 높게 제시되었으며, 사전지식의 활용은 관람객의 역할에 긍정적인 영향력으로 작용했다. 본 연구를 통해 전통적인 예술작품에 익숙한 관람객들은 디지털 전시에 대해서도 수동적 역할을 취하면서 두 가지의 지각방식에 의존한다는 사실이 확인되었다. 결론적으로 디지털 기술을 통한 재매개는 전시의 매체적 상이성에 따른 감상태도 및 관람객 역할에 대한 이분법적 논리의 경계를 모호하게 만들었으며, 이로 인해 명화 기반의 디지털 전시는 전통적인 예술작품 및 디지털 미디어의 특성을 동시에 갖는다는 것이 주요 시사점이라 할 수 있다. This research concurrently conducts literature review and quantitative research methodology in order to compare aesthetic experience of 〈Impressionist Landscape (hereafter IL)〉 and 〈Monet’s Impressionism Exhibition 2016 (hereafter MIE)〉. From the perspective of viewing attitudes, two types of perception equally coexist in both exhibitions: convergent perception is predominant over distracted perception in IL while distracted perception is higher than convergent perception in MIE. However, the influence of convergent perception on the degree of satisfaction and immersion is proved only in MIE. In terms of roles of viewer, there is a tendency to weigh on passive role in both exhibitions. In particular, it is worth noting that the role is relatively high in MIE. The role of viewer do not correlate with on the degree of satisfaction and immersion, as well as modes of perception. The elements of aesthetic experience are highly rated and the use of previous knowledge acts as a positive influence on the role of viewers in IL. Through this study, we witness the fact that visitors who are familiar with traditional artworks depend upon both modes of perception as well as passive role of viewer in the digital exhibition. In conclusion, remediation through digital technology has blurred the boundary of the dichotomy of a viewing attitude and a role of viewer depending on exhibit media, consequently MIE bears both natures of traditional artworks and digital media.