• Title/Summary/Keyword: Infrastructure regeneration

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A Reformation Proposal of Rural Empty Homes Strategies (선진사례에서 본 농촌빈집정비사업의 발전방향)

  • Choi, Soo-Myung;Han, Kyung-Soo
    • Journal of Korean Society of Rural Planning
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    • v.8 no.1 s.15
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    • pp.85-93
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    • 2002
  • This study aimed at proposing policy improving directions of the rural empty homes grant scheme in Korea. The implementation procedures and results of the relevant schemes/projects on optimum use of rural empty homes at home and abroad were reviewed by literature and internet searches. From the reviewing results, a tentative set of policy directions for project improvement were proposed: extention of project scope to all the redundant resources, dual focussing of project objectives on housing innovation and economic regeneration of communities, and systematization of project plan and implementation especially in the statutory aspects.

Influence of Community Vegetable Gardens on the Settlement in Residential District and Community Spirit of Local Residents from Perspective of Urban Regeneration

  • Hong, In-Kyoung;Yun, Hyung-Kwon;Jung, Young-Bin;Lee, Sang-Mi
    • Journal of People, Plants, and Environment
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    • v.23 no.2
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    • pp.139-148
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    • 2020
  • Urban problems raised by the concentration of population in urban areas have caused residents to migrate to other regions while causing other problems such as deteriorated infrastructure, traffic and environmental pollution problems in existing urban areas. As an alternative to improve this phenomenon, urban regeneration has emerged, and under the assumption that creating community vegetable gardens is effective in revitalizing cities considering their physical, social and cultural environment, frequency and descriptive analyses were conducted on the vegetable gardens in Jungnosong-dong, Wansan-gu, Jeonju-si, Jeollabuk-do, Korea to examine differences in the components of the surrounding environment and the settlement, and community spirit of the two groups comprised of 30 and 35 persons who did not and did participate in gardening respectively. Regression analysis were conducted to determine whether there were changes in community spirit after participating in gardening. As a component of the surrounding environment, gardening and fence management were found to be important for both the groups, and they seemed to have high satisfaction with their residence because they wanted to continue to live in their neighborhood. Overall, the satisfaction evaluation results showed that those who participated in gardening showed a higher satisfaction level than those who did not. Based on the changes in community spirit after participating in the activity, it was found that there was a high level of perception in all the components, indicating that the gardening had a positive effect on the cultivation of community spirit. As such, the spaces called vegetable gardens are not only for doing physical activities but also as shared conversation topics, and through the activities in the gardens, changes in the awareness of local residents can be brought about through the formation of social networks and natural communication between neighbors. It can be concluded that they encourage residents to actively participate in improving the urban environment through activities such as planting.

The Relationship between the Soil Seed Bank and Above-ground Vegetation in a Sandy Floodplain, South Korea

  • Cho, Hyung-Jin;Jin, Seung-Nam;Lee, Hyohyemi;Marrs, Rob H.;Cho, Kang-Hyun
    • Ecology and Resilient Infrastructure
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    • v.5 no.3
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    • pp.145-155
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    • 2018
  • In a monsoonal climate, the soil seed bank can play an important role in plant regeneration after the severe annual floods that disturb above-ground vegetation within the riparian zone. To investigate the relationship between the soil seed bank and vegetation, we measured the species composition of the soil seed bank and the extant above-ground vegetation in six major plant communities (Artemisia selengensis, Miscanthus sacchariflorus, Persicaria nodosa, Phalaris arundinacea, Phragmites japonica, and Rorippa palustris) in the Cheongmicheon Stream, Korea. A total of 21 species germinated from the floodplain soil seed banks. The most diverse seed bank (21 species) was found in the A. selengensis community, wheres the lowest number of species was found in the R. palustris community (2 species). Most soil seed banks were composed of annuals (90%), exceptions being Rumex crispus and Artemisia princeps, which are perennial ruderals. The similarity of species composition between the soil seed bank and above-ground vegetation was low with Sorensen's similarity indices averaging 29% (range 12 - 42%). Crucially, existing dominant perennials of the extant vegetation including A. selengensis, M. sacchariflorus, P. japonica and P. arundinacea were absent from the soil seed bank. In conclusion, the soil seed banks of the floodplains of the Cheongmicheon Stream were mainly composed of viable seeds of ruderal plants, which could germinate rapidly after severe flood disturbance. The soil seed bank may, therefore, be useful for the restoration of the early succession stages of riparian vegetation after flood disturbances.

A Study of the Effect of Asperity Change on the Shear Strength of Joint Plane (절리면의 거칠기 변화가 전단강도에 미치는 영향)

  • Cho, Taechin;Suk, Jaewook;Lee, Jonggun
    • Tunnel and Underground Space
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    • v.23 no.5
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    • pp.401-412
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    • 2013
  • Multi-stage shear test has been performed using joint specimens of gneiss, granite and shale to investigate the influence of micro-scale asperity change on the shear strength of joint plane. For each shear test asperity degradation characteristics of joint specimens of different joint surface strength have been analyzed by utilizing the optimum asperity parameter which can reflect the sequential asperity degradation. Elevation of joint surface profile has been measured and both the changes of asperity parameters and micro-scale asperity distribution have been investigated. Two distinctive variation modes of cohesion and friction angle have been delineated and major cause of shear strength parameter change has been analyzed by considering the micro-scale asperity angle change resulting from the abrasion, fracturing and regeneration of micro-scale asperities. Effects of micro-scale asperity variation on the joint shear strength have been also investigated.

Development of Titanium Dioxide (TiO2)-immobilized Buoyant Photocatalyst Balls Using Expanded Polystyrene (EPS)

  • Joo, Jin Chul;Lee, Saeromi;Ahn, Chang Hyuk;Lee, Inju;Liu, Zihan;Park, Jae-Roh
    • Ecology and Resilient Infrastructure
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    • v.3 no.4
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    • pp.215-220
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    • 2016
  • A new immobilization technique of nanoscale $TiO_2$ powder to expanded polystyrene (EPS) balls with temperature-controlled melting method was developed, and the photocatalytic activity of $TiO_2$ powder-embedded EPS balls were evaluated using methylene blue (MB) solution under ultraviolet irradiation (${\lambda}=254nm$). Based on the scanning electron microscope (SEM) images and associated energy-dispersive X-ray spectroscopy (EDX) analysis, the components of the intact EPS balls were mainly carbon and oxygen, whereas those of $TiO_2$-immobilized EPS balls were carbon, oxygen, and titanium, indicating that relatively homogenous patches of $TiO_2$ and glycerin film were coated on the surface of EPS balls. Based on the comparison of degradation efficiencies of MB between intact and $TiO_2$-immobilized EPS balls under UVC illumination, the degradation efficiencies of MB can be significantly improved using $TiO_2$-immobilized EPS balls, and surface reactions in heterogeneous photocatalysis were more dominant than photo-induced radical reactions in aqueous solutions. Thus, $TiO_2$-immobilized EPS balls were found to be an effective photocatalyst for photodegradation of organic compounds in aqueous solutions without further processes (i.e., separation, recycling, and regeneration of $TiO_2$ powder). Further study is in progress to evaluate the feasibility for usage of buoyant $TiO_2$-immobilized EPS to inhibit the excessive growth of algae in rivers and lakes.

Developing Gardens in Urban Idle Space (도시유휴부지의 정원조성방안)

  • Choi, Jaehyun
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.1
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    • pp.327-335
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    • 2021
  • We aimed to find new space types and characteristics for creating gardens in the city through the type of idle space in the city, present guidelines that can be used in creating gardens in the future, and establish basic data for expanding green infrastructure. As a result, we found that the idle space in the city was classified into four types, and it was determined that differentiation should be given to the creation of each type. The achievements of this study can be a potential source of urban ecosystem services that can provide community benefits and opportunities for urban regeneration through the redevelopment of the community and support the health and well-being of local residents. In addition, urban idle space can be a valuable resource as a green infrastructure that can be used to support the health of urban ecosystems and improve the quality of life of urban residents.

A Study on Performance Improvement and Remodeling of Old House - Old House Remodeling for Guest House - (지방 중소도시 주택의 성능개선 및 구옥 리모델링 제안 - 게스트 하우스의 특성을 반영한 구옥의 리모델링 -)

  • Lee, Sung-kyun
    • Journal of the Korean Institute of Rural Architecture
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    • v.19 no.2
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    • pp.17-24
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    • 2017
  • The study aims to investigate problems underlying in an old local house in Iksan, Jeollabuk-do and hence improve performance and remodel the house. Based on a survey regarding current conditions of the house and several case studies on other successful renovation projects, this study suggests new renovation concepts for the old house into a guest house. The study analyzes the current state of Iksan in which the location is faced with population decline - especially among the young - and the lack of community facilities and infrastructure, and finally the unfavorable situation in the residential environment. the case study involves four successful renovated guest house projects: three renovated old single houses in Seoul and Jeonju, and a renovated old Japanese housing complex in Kunsan. The renovating concepts for the local old house is as follows: renovating for performance improvement (i.e. lighting, ventilation, heating, plumbing, insulation, structure, and water proofing), utilizing the local house to a guest house for a growing number of tourists, adding new guest rooms, installing convenient facilities in order to provide better living environments for the visitors, and improving community and street landscapes.

Residents' use and awareness for green open space in the deprived area - focusing on the old downtown area of Jeonju-si - (쇠퇴지역 거주민의 공원녹지 환경 이용과 의식 - 전주시 구도심 지역을 중심으로 -)

  • Gu, Na-Eun;Lee, Yeun-Sook
    • KIEAE Journal
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    • v.12 no.1
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    • pp.45-53
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    • 2012
  • Our society confronts a new social demand to protect the environmental equity of the people, and the green open space that is a representative public property which takes a very important role for the residents in less privileged urbane area in terms of providing amenity without requiring individual expenses additionally. This study aims to identify the current status and problems based on the environmental experiences of the actual residents, excluding the simple physical status, in relation with supplying public property of green open space, and the study put focus on the old downtown area of Jeonju-si which is a test-bed of urbane regeneration planned by the government. Residents in less privileged area evaluate the importance of green environment of park very highly as a factor to enhance their quality of life, but as they do not have well-established environmental infrastructure to back up their needs practically, they face difficulties to use such environment and show low level of satisfaction. In particular, as such characteristics appear remarkably among the least privileged urbane people in the less privileged urbane area, their dependence and expectation upon the environment of green open space is very apparent and, therefore, it is urgently needed to improve their environment for public green park area for the less privileged urbane people.

A Characteristics of Scenic Maintenance Regime with Integral Planning in Mojiko-Retro District (모지코 레트로지구의 경관관리제도와 중점지구 통합 계획적 특성)

  • Kim, Do-Yeon;Yoo, Jae-Woo
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.1
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    • pp.63-72
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    • 2019
  • The purpose of this study is that investigated the characteristics of integral planning related factors using the history and culture of Mojiko. It is a small city that has been urbanized after the opening of the port for logistics transportation in the modern period of Japan. As the function of the logistics city, which is the factor of the expansion of the town, declined, Mojiko applied the retro concept to the harbor which has lost its popularity due to the regional characteristics of the city to increase and revitalize local visits. Mojiko has steadily promoted the retro style of landscape and town development over 30 years, focusing on 18 Historical buildings and modern infrastructure. We analyzed characteristics of integrated urban planning include the regulation, landscape institution. Moreover, we suggest the result of the designation process of a core scenery maintenance district and the components of the plan after the designation analysis and provide essential data for revitalizing the field based on the historic city for the cultural establishment and beautiful town in the future. And deliver vital data to reviving the area based on the historical city culture establishment and beautiful town in the future.

Fire Acupuncture for Varicose Veins in the Lower Extremities: A Review of Randomized Controlled Trials

  • Onyou Jo;Jiyoon Lee;Sangmin Park;Jaewook Shin;Saerom Choi;Seongyong Choi
    • Journal of Acupuncture Research
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    • v.40 no.3
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    • pp.177-187
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    • 2023
  • Varicose veins have a substantial burden on individuals' aesthetics and overall quality of life. The current body of research on Korean medical interventions for varicose veins is limited in Korea, and exploration into clinical trends is lacking. This review specifically analyzed fire acupuncture, which is an understudied intervention in Korea that demonstrated efficacy in alleviating pain and paralysis while promoting tissue regeneration. A comprehensive investigation of the China National Knowledge Infrastructure database was conducted, utilizing terms such as "varicose vein," "fire needle," "fire acupuncture," "burning acupuncture," "burning needle," "huǒzhēn," "xiàzhī jìngmài," and "jìngmài qūzhāng." This review included 14 studies investigating the role of fire acupuncture in treating varicose veins. We extracted variables, including age, sex, disease duration, intervention method, treatment frequency, treatment period, acupoints, and outcomes. Fire acupuncture appeared as the primary intervention method, followed by general acupuncture. The protruding part of varicose veins is the main treatment area for fire acupuncture, while the acupoints BL57 and ST36 were most frequently utilized for general acupuncture. Treatment results revealed significant improvement in all studies. However, there are limitations, such as scarce studies, limited side effects studies, and potential bias. Consequently, extensive and well-structured future studies are necessary to demonstrate the role of fire acupuncture in varicose veins.