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지속가능성 전략에 의한 역사적 상업 도심의 재활성화 - 대림-청계 상가 리모델링 중심으로 -
무니아트 제바 퍼오지아(Muniat Jeba Fowziyah),이명식(Lee, Myung-Sik) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.1
The Sewoon project, built in the latter half of the 20<SUP>th</SUP> century, being the evidence of over 50 years of socio-economic, cultural transitions, carries extraordinary historical and sentimental value. Ever since its completion, despite several redevelopment attempts it has faced many phases of dilapidation. This paper analyses precedent research, socio-cultural and present physical conditions of the Sewoon project, and attempts to establish that Daerim Sangga and Chyeonggye Sangga can be seen as a target building as an attempt to reinvigorate its surroundings and impact the entire project positively. To further fulfill the purpose of the paper, this research will be concluded with a redesign proposal for Daerim – Chyeonggye Sangga based on "Sustainability Strategies".
Performance Analysis of Clustering using Partitioning and Hierarchical Clustering Techniques
S. C. Punitha,P. Ranjith Jeba Thangaiah,M. Punithavalli 보안공학연구지원센터 2014 International Journal of Database Theory and Appli Vol.7 No.6
Text clustering is the method of combining text or documents which are similar and dissimilar to one another. In several text tasks, this text mining is used such as extraction of information and concept/entity, summarization of documents, modeling of relation with entity, categorization/classification and clustering. This text mining categorizes only digital documents or text and it is a method of data mining. It is the method of combining text document into category and applied in various applications such as retrieval of information, web or corporate information systems. Clustering is also called unsupervised learning because like other document classification, no labeled documents are providing in clustering; hence, clustering is also known as unsupervised learning. A new method called Hierarchical Agglomerative Clustering (HAC) which manages clusters as tree like structure that make possible for browsing. In this HAC method, the nodes in the tree can be viewed as parent-child relationship i.e. topic-subtopic relationship in a hierarchy. HAC method starts with each example in its own cluster and iteratively combines them to form larger and larger clusters. The main focus of this work is to present a performance analysis of various techniques available for document clustering.
Karunakaran Chockalingam,Singh I. Jeba,Vinayagamoorthy Pazhamalai 한국세라믹학회 2023 한국세라믹학회지 Vol.60 No.2
Cubic Ag2O-deposited anatase TiO2 nanospheres with cubic Ni0.5Zn0.5Fe2O4-core have been obtained by a 2-stage synthesis. They have been characterized by energy-dispersive X-ray spectroscopy, high-resolution scanning and transmission electron microscopies, X-ray and selected area electron diffractometries, vibrating sample magnetometry, nitrogen adsorption and desorption, and UV–visible diffuse reflectance and photoluminescence spectroscopies. The synthesized samples are superparamagnetic and absorb UV-A light and visible light in the entire wavelength range. Structure directing agent polyvinylpyrrolidone provides little influence on the Ag2O-capping process. The synthesized Ni0.5Zn0.5Fe2O4-core/Ag2O-capped TiO2-shell nanospheres are whole visible light-active magnetically recoverable photocatalyst; capped Ag2O sensitizes anatase TiO2 under whole visible light and the ferrite core buried in TiO2 lattice enables magnetic recovery of the photocatalytic nanospheres.