• 대한치과의사협회지
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• 제51권12호
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• pp.643-649
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• 2013

The aim of this study was to achieve the healing of peri-implantitis defects and the hard tissue regeneration using the augmentation of a xenograft on defect site. Two patients were treated with the surgical approach. With a full muco-periosteal flap elevation, the implant surfaces were exposed and taken the debridement of granulation tissue around the abutment. Each surface of the abutments was prepared with the air-abrasive device (PerioFlow$^{(R)}$) for decontamination. Bovine-derived bone mineral (Bio-Oss collagen$^{(R)}$) was then used to fill the defects, and no membrane was placed on the grafting site. Radiographs and clinical photo was taken to compare from baseline status. Within the limits of the present case, this case shows the significance of the surgical treatment of peri-implantitis. And this also verifies the stability of bovine-derived bone mineral and effectiveness of Air-abrasive device (PerioFlow$^{(R)}$).

• 한국콘텐츠학회논문지
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• 제17권3호
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• pp.129-137
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• 2017

대도시의 발전과정에서 각종 문제가 지속적으로 발생하기 때문에, 도시가 몰락하지 않도록 하기 위해서는 대도시 재생문제가 도시문제의 중대한 사항으로 대두되지 않도록 해왔다. 본 논문은 대도시 재생의 발전 배경부터 시작하여, 현재 각국에서 연구하고 있는 대도시 재생문제 현상에 대해 다룬다. 사례들을 선별, 분석하고 평가하는 과정을 통해, 연구가치가 비교적 높은 사례들 찾아서 분석하였다. 사례분석을 통해 선진국들의 대도시 재생문제에 대한 우수한 조치를 알 수 있고, 다른 각도에서 대도시 재생문제 해결가능성과 방법을 찾을 수 있다. 생태디자인 전략 라운드와 리스트 이런 연구 방법과 사례분석 결과에 따라서 산업단지의 건설 초기에는 문화적 가치를 발굴하는 것이 필요하고, 중기에는 상업과의 충분한 결합이 되도록 진행하는 것이 필요하며, 후기에 와서는 환경의 후속적 보호 작업에 잘 맞는지에 대해서 중요시되어야 한다.

• 지역연구
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• 제37권3호
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• pp.47-58
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• 2021

부산광역시는 도시재생특별법이 제정되기 이전인 2010년부터 도시재생 전담조직을 신설하고 산복도로 르네상스사업과 희망마을만들기사업과 같은 지역재생사업을 자체 예산으로 추진하면서 도시정책에 커뮤니티 비즈니스의 참여를 확대해 온 선도적 지자체이다. 본 연구는 도시재생정책 초기에 부산광역시를 거점으로 한 지역밀착형 커뮤니티 비즈니스의 운영현황과 특성에 대해서 분석하였다. 그 결과 지역밀착형 커뮤니티 비즈니스의 지향점은 '지역 공동체 의식 강화'에 있는 반면, '지역주민간 상부상조 기회 제공'과 '지역 주민들의 지역사회 이해 강화' 등의 파급효과는 낮으며, '충분한 사업자금 확보'와 '필요한 인재 확보'가 운영상의 중요한 요소로 나타났다. 향후 도시재생정책에서 지역밀착형 커뮤니티 비즈니스를 활성화하기 위해서는 보조금을 확대하기보다 도시재생사업의 기능조직으로 전환하고 사업참여 기회의 확대가 필요하다.

• 한국조경학회지
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• 제43권5호
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• pp.87-99
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• 2015

과거 하드웨어 중심의 하향식 농촌개발사업을 개선하고자 2000년대부터 소프트웨어 중심의 사업을 지향하였고, 지자체 주도의 마을만들기가 행해졌다. 하지만 지금까지의 마을만들기 사업들 역시 외형적으로는 상향식 개발구조를 보이지만, 실제적으로는 행정기관의 관여 아래 추진되는 하향식 추진절차를 벗어나지 못하고 있는 실정이다. 본 연구는 현재의 마을만들기 진행과정에서 한 단계 더 나아간 상향식 개발방식을 효과적으로 반영하기 위해 수행되었으며, 여러 사람이 같은 자격으로 모여 마을만들기에 참여할 수 있도록 '협업형 마을만들기'를 제시한다. 연구대상지는 거창군을 대상으로 하였다. 행정 관련 공무원과 1:1 인터뷰를 통해 현재 거창군 마을만들기의 현황 및 실태분석을 알아보고, 이장단 설문조사와 일반주민 심층면담을 통해 마을만들기에 대한 주민 인식을 선행조사하였다. 이를 바탕으로 관련 공무원, 전문가, 지역주민의 참석 하의 10회에 걸친 라운드테이블을 진행하여 거창군의 협업형 마을만들기 실천전략을 로컬푸드, 문화 복지, 귀농 귀촌, 마을개발, 도농교류의 5가지 핵심분야를 선정하였다. 또한, 이는 행정의 지속적인 협업체계 구축과 주민의 참여역량 강화 노력, 전문가의 체계적인 통합운영관리 지원을 통해 이루어져야 한다고 판단하였다. 이로서 거창군만의 협업형 마을만들기 실천전략을 모색하였으며, 향후 각 농촌지역에서 상향식 마을만들기를 진행하고 도입할 수 있기를 기대한다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1608-1614
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• 2009

In recent days, the study of urban regeneration has been conducting with purposeful and sincere intent starting out with the residential environment improvement works. Within the range of urban regeneration, the low-cost housing technology means development of totally-integrated housing technology that may be applied to the regeneration project, especially for the rundown areas where infrastructure facilities in the urban zone have been degraded and obsoleted. In line with this, among many and varied methods in order for realization of the low-cost housing as a part of urban regeneration project, this study should like to propose an improvement methods of the key technologies in relation to the construction works by type of work with which construction costs (directing cost) would be reduced. And, in order to elicit the method for element technology that has been developed and improved in the most optimal manner centering on the selected construction work by the type of work, the researcher conducted comparative review of summary of element technologies related to the construction works concerned, characteristics, and construction method thereof. In particular, the researcher investigated the expenses (construction cost and labor cost), constructions (contractibility and productivity), safety, quality of works, and the technical status in environmental aspects, and the researcher also conducted analyses and evaluations thereof.

• 토지주택연구
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• 제2권1호
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• pp.9-17
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• 2011

도시재생사업은 도시쇠퇴가 나타난 지역의 환경적, 사회적, 경제적 측면을 종합적으로 고려하여 도시기능을 재활성화 시키는 것을 목적으로 한다. 그러나 지금까지 우리나라의 도시재생사업은 도시재생에 관한 명확한 이념정립 및 목적의식의 부재로 말미암아 물리적 환경 측면에 국한되어 진행되어 왔을 뿐 사회적, 경제적 측면까지를 종합적으로 고려하지 못한 채 추진되어왔다. 또한 체계적인 도시재생사업의 추진을 위한 사업운영원리 및 지원체제가 구축되지 않아 부처별 산발적인 사업으로 시행되는 등 비효율적인 사업추진 행태가 지속되었다. 이러한 도시재생의 전반적인 문제점을 해결하고 도시재생제도에 명확한 방향을 제시하여 종합적이고 창의적인 도시재생 실현하고자 도시재생에 관한 기본법 마련이 필요하다는 주장이 제기되고 있다. 본 연구의 목적은 먼저 도시재생기본법의 적절한 법적 성격과 효력을 설정하고, 이에 적합한 도시재생기본법의 기본구조를 마련한 후, 도시재생 운영원리에 관한 중점 내용을 앞에서 도출한 기본구조에 담아 도시재생에 대한 체계적인 방향을 제시하는 도시재생기본법(안)을 도출하는 것이다. 이를 위해 국내 전체 54개 기본법을 성격 및 효력에 따라 유형별로 분류하고 도시재생기본법에 적합하다고 판단되는 선언적 성격의 19개 기본법의 구조분석을 통해 총칙, 내용, 발전의 3단계, 총 19개 조항으로 구성된 도시재생기본법(안)을 도출하였다. 도출된 기본법(안)은 타법과의 관계에서 일반적(현재), 우선적(미래)법적 지위를 가지고 있다. 또한 도시재생기본방침을 제시하여 도시재생사업에 대한 가이드라인을 제시하되 지역별 여건 역시 적절히 반영하여 지역 실정에 맞는 도시재생사업을 추진할 수 있도록 하였다. 마지막으로 도시재생사업간 연계, 공공역할의 강화, 도시재생전략 다각화 등 도시재생의 운영원리 측면에서 강조되어야 할 내용을 규정하였다. 이 연구는 우리나라의 도시재생정책이 종합성, 일관성, 계속성을 가지고 추진될 수 있도록 법제도적 장치를 마련하는 방안을 제시하였다는 점에서 그 의의가 있다.

• Journal of Periodontal and Implant Science
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• 제41권2호
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• pp.86-91
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• 2011

Purpose: The aim of this study was to analyze the short-term predictability and reliability of Astra Tech implants according to the demographical distribution of patients and condition of implant sites and location of implants. Methods: Among patients treated with Astra Tech implant (Astra Tech AB) in the Department of Periodontology at the Dental Hospital of Yonsei University of College of Dentisry and K Dental Clinic from May 2004 to March 2009, 195 implants in 98 patients which had been restored more than 6 months ago were reviewed in this study. Following data were reviewed from patient charts and implants success rate was examined: 1) patient type and implant location, 2) bone status at the implant site, 3) diameter and length of the placed implants, 4) presence or absence of bone augmentation and types of the augmentation. Results: The results from this study are as follows: 1) most implants were placed in the molar area, especially 1st molar area of maxilla, 2) most implants were placed at $D_2$ and $D_3$ bone type, 3) most implants were placed in areas of B and C bone quantity, 4) autogenous and alloplastic bone graft and artificial membrane were used for placement of 74 implants. Conclusions: Short-term survival rate of Astra Tech implants was 100%.

• 대한건축학회논문집:계획계
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• 제34권5호
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• pp.139-150
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• 2018

This paper aims to elaborate the role and availability of the community enterprise as a form of methodology in local regeneration, dealing with urban social problems generated in the process of urban development. In a situation of the increasing skepticism in the capitalism, the instability in public welfare system and disintegration of community, social economy has come to the fore as an alternative. The community enterprise, especially, has shown the potential to form a virtuous cycle in local regeneration system; residents recognize local problems by themselves; discover and utilize the local resources and assets in the process of solving the problems as an entrepreneurial form; and consequently create social and economic capital which can be reinvested in the local community. Given these aspects, Korean government has implemented supporting policies for the promotion of community enterprises, and new government's "Urban Regeneration New Deal Project" are putting more importance on the role of social and community enterprises as a propulsion unit. In this regard, this paper first explores the concept and features of community enterprise in economic and social aspects, whereby it analyzes the capacity of community enterprises as principal agencies or implements in local development. Then, the development status and institutional supports for community enterprises in the UK is revealed, and investigates case studies which are playing a revolutionary role in urban regeneration or local economic revitalization. Based on this analysis, it draws the main factors for the sustainable and autogenous community enterprise as follows: flexibility in legal forms, community owned assets, diverse fund streams and invigorating social investment market, active partnership between public and private sectors, ardent enterprisers and intermediate support organizations.

• Journal of Ecology and Environment
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• 제46권2호
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• pp.111-125
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• 2022

Background: Zanthoxylum armatum is one of the 30 prioritized medicinal plants for economic development of Nepal with a high trade value. Understanding the ecology of individual species is important for conservation and cultivation purposes. However, relation of ecological factors on the distribution and populations of Z. armatum in Nepal remain unknown. To address this knowledge gap, an attempt has been made to study the population structure, distribution, and regeneration potentiality of Z. armatum. Vegetation sampling was conducted at six different localities of Salyan district along the elevation range of 1,000 m to 2,000 m. Results: Altogether 50 plant species belonging to 44 genera under 34 families were found to be associated with Z. armatum. Significantly higher species richness was found at Rim (1,400-1,700 m) and Chhatreshwori (1,800-2,000 m) and lower at Kupinde (1,600-1,800 m). The highest population density of Z. armatum was at Kupinde (1,600-1,800 m) with a total of 1,100 individuals/ha. and the lowest at Chhatreshwori (1,800-2,000 m) with 740 individuals/ha. Based on the A/F value (Whitford index), it can be said that Z. armatum has random distribution in the study area. The plants were categorized into seedlings, saplings and adults based on plant height and the status of natural regeneration category determined. The regeneration potentiality of Z. armatum in the study area was fair with the average seedlings and saplings densities of 150 and 100 individuals/ha. Respectively. A Shannon-Weinner index mean value of 2.8 was obtained suggesting high species diversity in the study area. Conclusions: The natural distribution and regeneration of Z. armatum is being affected in the recent years due to anthropogenic disturbances. Increasing market demand and unsustainable harvesting procedures are posing serious threat to Z. armatum. Thus, effective conservation and management initiatives are most important for conserving the natural population of Z. armatum in the study area.

• Plant Biotechnology Reports
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• 제4권1호
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• pp.85-94
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• 2010

In vitro shoot regeneration of gladiolus in three different culture systems, viz., semi-solid agar (AS), membrane raft (MR), and duroplast foam liquid (DF) cultures was evaluated following the kinetics of shoot multiplication and hyperhydricity at optimized growth regulator combinations. Compared to the AS system, matrixsupported liquid cultures enhanced shoot multiplication. The peak of shoot multiplication rate was attained at 18 days of incubation in the MR and DF systems, whereas the maximum rate in the AS system was attained at 21 days. An early decline in acceleration trend was observed in liquid cultures than the AS culture. The hyperhydric status of the regenerated shoots in the different culture systems was assessed in terms of stomatal attributes and antioxidative status. Stomatal behavior appeared to be normal in the AS and MR systems. However, structural anomaly of stomata such as large, round shaped guard cells with damage in bordering regions of stomatal pores was pronounced in the DF system along with a relatively higher $K^+$ ion concentration than in the AS and MR systems. Antioxidative status of regenerated shoots was comparable in the AS and MR systems, while a higher incidence of oxidative damages of lipid membrane as evidenced from malondialdehyde and ascorbate content was observed in the DF system. Higher oxidative stress in the DF system was also apparent by elevated activities of superoxide dismutase, ascorbate peroxidase, and catalase. Among the three culture systems, liquid culture with MR resulted in maximum shoot multiplication with little or no symptoms of hyperhydricity. Shoots in the DF system were more prone to hyperhydricity than those in the AS and MR systems. The use of matrix support such as membrane raft as an interface between liquid medium and propagating tissue could be an effective means for rapid and efficient mass propagation with little or no symptoms of hyperhydricity.