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Byeonghwa Song,Joohwan Suh 전북대학교 휴양및경관계획연구소 2016 휴양및경관연구 (J East Asian Landscape Studies) Vol.10 No.1
This study presents a potential environmental design, rather than the application of the environmental design technique model, to enhance the biodiversity of desolate space. Utilizing the main theories of landscape ecology in relation to vegetation and habitat restoration models, can allow for environmental restoration and the creation of climate change adaptation models to develop existing areas with specific topographical conditions, and allow for the utilization of the ecological base as a terrain recovery plan derived from the application of environmentally friendly design. We believe that the implications of this study will allow for the future creation of urban public parks and restoration of the ecological environmentally friendly design by using applied modeling techniques. Finally, we believe the suggestions outlined here provide a pilot case that delineates the value of the shared space as well appropriately address climate change.
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Byeonghwa Song,Hyung Jung Yoo,Eun-Goo Jeong,Sung Jae Kim,Jong Mo Seo,Tae-You Kim,Dong-Il “Dan” Cho 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
This paper presents a method of fabricating pulverized drug, Lapatinib (Tykerb®), loaded micro chambers made of a biodegradable polymer, poly (ε-caprolactone) (PCL), for bacteria-based microrobots. The PCL is a biodegradable, biocompatible polymer which is approved by the U.S. Food and Drug Administration (FDA) for use in the implantable medical devices. Lapatinib is approved by the U.S. FDA for the treatment of advanced or metastatic breast cancer. In order to realize bacteria-based microrobots, selective bacterial adhesion is necessary which can enhance directional locomotion of the bacteria-based microrobots. The x-ray lithography process can be used for biodegradable polymer micromachining to fabricate structures with various shapes which can be applied for bacteria-based microrobots. A pulverized drug is used because a liquefied drug cannot be used for the x-ray lithography process. To fabricate pulverized Lapatinib loaded micro chambers, the PCL films are prepared by the solvent casting method and lamination process. Lapatinib is encapsulated between the PCL films by the screen printing method. The x-ray lithography process is then used for fabrication of micro chambers. The fabrication results indicate that the proposed method is appropriate for fabrication of biodegradable polymeric micro chambers encapsulated with the pulverized drug for bacteria-based microrobots.
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농촌 공공공간 및 시설의 배치특성 및 중요도 분석 - 전문가 설문 및 AHP 분석을 중심으로 -
Joohwan Suh,Jin-Oh Kim,Byeonghwa Song 전북대학교 휴양및경관계획연구소 2015 휴양및경관연구 (J East Asian Landscape Studies) Vol.9 No.4
농촌사회의 소득수준 및 생활수준 향상과 더불어 농촌 공공공간 및 시설향상에 대한 요구는 지속적으로 제기되어 왔으며 이에따라 정부도 최근 다양한 방식의 농촌개발과 예산지원을 추진해오고 있다. 그러나 이러한 농촌 공공공간 및 시설의 지원 시 시설의 종류 및 입지 선정이 적절하지 않아 시설의 중복투자, 이용부족으로 인한 시설방치 등 다양한 문제점들이 제기되고 있다. 본 연구는 농촌마을에 분포하고 있는 다양한 공공공간 및 시설의 분포를 분석하고 이들에 대한 농촌마을의 유형별 중요도를 이해하는데 그 목적이 있다. 주요 연구방법으로는 100명을 대상으로 한 전문가 설문과 AHP(Analytic Hierarchy Process)를 이용하였으며 이를 통해 세 개의 농촌마을 유형 즉 거점면, 권역, 마을단위의 유형별로 주요 공공시설들간의 상대적 중요도를 분석하였다. 50개 마을을 분석한 결과 농촌마을에서 가장 일반적으로 발견되는 공공시설은 마을회관, 쉼터, 체험센터, 마을진입부, 안내시설로 나타났다. AHP는 세 단계의 비교로 이루어졌는데 첫 번째 마을유형별간의 쌍대비교에서는 거점면, 권역, 마을 순으로 중요도가 나타났다. 농촌 공공공간과 마을유형간의 쌍대비교에서는 모든 마을유형에서 기초생활시설, 문화 복지시설, 농촌관광시설, 소득시설의 순으로 중요도가 나타났다. 마을유형과 공공공간, 공공시설 등 각각의 가중치를 종 합한 중요도에서는 거점면의 경우 공동주차장의 중요성이 가장 높은 것으로 나타났고 다음으로 상수도시설, 공동화장실, 마을회관 순으로 나타났다. 권역에서는 공동주차장의 중요성이 가장 높았으며 다음으로 상수도시설, 체험센터, 마을회관 의 순으로 나타났다. 마을단위에서는 버스정류장이 가장 중요한 시설로 평가되었으며 다음으로 저수지, 하수처리장, 체 험센터의 순으로 나타났다. 본 연구는 비록 마을의 독특한 사회문화적 환경을 고려한 공공시설의 중요도 평가에는 한계를 안고 있으나 농촌마을에서의 공공시설 계획 시 마을유형의 특성을 고려한 시설의 상대적 중요도를 이해하고 이를 바탕으 로 적절한 시설을 선정하는데 도움을 줄 것으로 기대된다 Over the last decade, national and local governments have spent considerable funds planning and constructing public facilities in rural villages to meet local demand. However, concerns have been raised over inappropriate facilities and building these so close to each other that their functions overlap. This study aims to understand the distribution characteristics and relative importance of public facilities in rural villages. We conducted a survey of 100 experts and analyzed the results using the analytic hierarchy process to determine the relative importance of public facilities. We classified villages into three types: rural downtown, rural clustered, and Single - unit village. Our results indicated that the most abundant facilities were community centers, pocket parks, rural activity centers, village gates, and rural information signs. In downtown villages, public parking lots were assigned the highest importance by the experts, followed by water supply facilities, public restrooms, and community centers. This implies that downtown villages require public spaces and facilities associated with visitor access and convenience, as well as basic living infrastructure. In clustered villages, public parking lots were rated highest, followed by sewage treatment plants, activity centers, and community centers. This indicates that, like downtown villages, public parking lots were considered the most important in clustered villages. This is because government - led rural developments are focused primarily on promoting tourism and economic activities. In single - unit villages, bus stops were rated the highest, followed by reservoirs, sewage treatment plants, and activity centers. Single - unit villages in general have relatively poor access to public transit and our analysis confirmed that bus stops are relatively more important than other facilities in these villages. We believe that this study can provide a logical ground through which the relative importance of different kinds of public facilities can be understood and subsequently selected during the process of rural planning and development.
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Hyung Jung Yoo,Sangmin Lee,Jaehyun Ahn,Sungjin Oh,Byeonghwa Song,Sung Jae Kim,Jong-Mo Seo,Tae-You Kim,Dong-il “Dan” Cho 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
Bacteria-based biomedical microrobots have been proposed to achieve effective localized drug delivery. To enhance a directional locomotion of bacteria-attached microsystem, structures with selective bacterial adhesion are necessary. Having different surface morphologies of microstructures is beneficial for selective attachments of bacteria. In this paper, a surface energy modification method for controlling bacterial adhesion on biodegradable-polymer structures is presented. This is achieved by controlling exposed doses of x-ray synchrotron irradiation. To calculate the x-ray exposure time for varying the surface morphology of the biodegradable polymeric devices, the equation for exposed dose is derived. The contact angles of different surfaces are measured, and the corresponding surface energies are calculated to verify the modification of the surface morphology. As a result, the surface energy increases with the increment of the exposed dose to the biodegradable-polymer. The developed surface energy modification method is suitable for modifying the polymeric surface without additional physical/chemical treatments. The fabricated cubic structures with different surface morphologies can be used for effectively flagellating bacteria on selective surfaces for directional locomotion.
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