• KIEAE Journal
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• 제3권2호
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• pp.59-66
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• 2003

To be the design method supporting aesthetic ability of human, CAAD system should essentially recognize architectural form in the same way of human. In this study, visual perception process of human was analyzed to search proper computational method performing similar step of perception of it. Through the analysis of visual perception, vision was separated to low-level vision and high-level vision. Edge detection and neural network were selected to model after low-level vision and high-level vision. The 24 images of building, tree and landscape were processed by edge detection and trained by neural network. And 24 new images were used to test trained network. The test shows that trained network gives right perception result toward each images with low error rate. This study is on the meaning of artificial intelligence in design process rather than on the design automation strategy through artificial intelligence.

• International Journal of Costume and Fashion
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• 제16권2호
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• pp.81-99
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• 2016

The Coptic tapestry has been carried out since the ancient Egypt. The aim of this study is to revive the Coptic tapestry and its cultural, aesthetic influence on the modern denim fashion. Denims have been developed as one of trendy casual wear to symbolize youth and worn by various age ranges. It evolved into a fashion icon due to its ability to change with every social and cultural evolution. In this study, I presented many designs inspired from the Coptic tapestry textiles. The Coptic tapestry style can be a vital starting point for new ideas for decorating denims. A survey has been conducted for two groups of adult females. The survey results clarified that our designs were approved by the younger group than the older one. I hope this study contributes to developing designs inspired by the past artifacts.

• 대한심미치과학회지
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• 제16권2호
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• pp.7-18
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• 2007

There is now an increased demand for harmony between the peri-implant gingiva and adjacent dentition. In the event of a pending loss of a single tooth in the aesthetic zone with healthy periodontium, expectation for optimal gingival and prosthodontic aesthetics are often very high. Unfortunately, bone resorption is common following the removal of an anterior tooth, compromising the gingival tissue levels for the eventual implant restoration. Also, improper implant placement and inadequate osseous-gingival support potentially deleterious aesthetic result. The creation of an esthetic implant restoration with gingival architecture that harmonizes with the adjacent dentitionis formidable challenge. The predictability of the peri-implant esthetic outcome may ultimately be determined by the patient's own presenting anatomy rather than the clinician's ability to manage state-of-the-art procedures. To more accurately predict the peri-implant esthetic outcome before removing a failing tooth, a considering of diagnostic keys is essential. This presentation addresses the useful diagnostic keys that affect the predictability of peri-implant gingival aesthetics and the overcoming of the risk factors in anterior single-tooth replacement; it also describes a surgical and prosthodontic technique in achieving a long term successful esthetic outcome. Proper diagnosis and understanding of the biological and periodontal variables of failing dentition and their response to surgical and prosthodontic procedures are the essence of predictability. Using a smart protocol that alters the periodontium toward less risk and more favorable assessment of the diagnostic keys before implant placement will provide the most predictable esthetic outcome. Simple diagnostic keys suggested this presentation are useful method to evaluate the overcoming of the risk factors in anterior single implant restoration.

• Archives of Plastic Surgery
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• 제39권6호
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• pp.593-599
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• 2012

Background This study aimed to investigate the possibility of isolating mesenchymal stem cells (MSCs) from human thigh adipose tissue and the ability of human thigh adipose stem cells (HTASCs) to differentiate into hepatocytes. Methods The adipose-derived stem cells (ADSCs) were isolated from thigh adipose tissue. Growth factors, cytokines, and hormones were added to the collagen coated dishes to induce the undifferentiated HTASCs to differentiate into hepatocyte-like cells. To confirm the experimental results, the expression of hepatocyte-specific markers on undifferentiated and differentiated HTASCs was analyzed using reverse transcription polymerase chain reaction and immunocytochemical staining. Differentiation efficiency was evaluated using functional tests such as periodic acid schiff (PAS) staining and detection of the albumin secretion level using enzyme-linked immunosorbent assay (ELISA). Results The majority of the undifferentiated HTASCs were changed into a more polygonal shape showing tight interactions between the cells. The differentiated HTASCs up-regulated mRNA of hepatocyte markers. Immunocytochemical analysis showed that they were intensely stained with anti-albumin antibody compared with undifferentiated HTASCs. PAS staining showed that HTASCs submitted to the hepatocyte differentiation protocol were able to more specifically store glycogen than undifferentiated HTASCs, displaying a purple color in the cytoplasm of the differentiated HTASCs. ELISA analyses showed that differentiated HTASCs could secrete albumin, which is one of the hepatocyte markers. Conclusions MSCs were islolated from human thigh adipose tissue differentiate to heapatocytes. The source of ADSCs is not only abundant abdominal adipose tissue, but also thigh adipose tissue for cell therapy in liver regeneration and tissue regeneration.

• Archives of Plastic Surgery
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• 제38권4호
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• pp.415-420
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• 2011

Purpose: The reconstruction of a soft tissue defect of the heel pad can be challenging. One vital issue is the restoration of the ability of the heel to bear the load of the body weight. Many surgeons prefer to use local flaps or free tissue transfer rather than a skin graft. In this study, we evaluated the criteria for choosing a proper flap for heel pad reconstruction. Methods: In this study, 23 cases of heel pad reconstruction were performed by using the flap technique. The etiologies of the heel defects included pressure sores, trauma, or wide excision of a malignant tumor. During the operation, the location, size and depth of the heel pad defect determined which flap was chosen. When the defect size was relatively small and the defect depth was limited to the subcutaneous layer, a local flap was used. A free flap was selected when the defect was so large and deep that almost entire heel pad had to be replaced. Results: There was only one complication of poor graft acceptance, involving partial flap necrosis. This patient experienced complete recovery after debridement of the necrotic tissue and a split thickness skin graft. None of the other transferred tissues had complications. During the follow-up period, the patients were reported satisfactory with both aesthetic and functional results. Conclusion: The heel pad reconstructive method is determined by the size and soft-tissue requirements of the defect. The proper choice of the donor flap allows to achieve satisfactory surgical outcomes in aesthetic and functional viewpoints with fewer complications.

• Medical Lasers
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• 제10권1호
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• pp.31-36
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• 2021

Background and Objectives Several predicted optimal parameters for laser treatment have been suggested, making the settings subject to variation. Thus, picosecond lasers may require more data and studies to optimize the laser parameters, increase the efficacy of each session, and minimize the total number of sessions. This study evaluated the results of picosecond laser tattoo removal in variable locations, focusing on the aesthetic outcome, number of procedures, and adverse effects. Materials and Methods Nine patients who underwent picosecond laser treatment from February 2014 to July 2020 were enrolled. Before the procedures, the required number of sessions was estimated using the Kirby-Desai scale. At the end of the treatment, the patients assessed their satisfaction. The patient and two plastic surgeons assessed the clearance of the tattoo. Results The mean of the clearance was 86.6% in both the patient and investigators assessment. The patients reported satisfaction for an average score of 5.1 ± 0.78 for the aesthetic outcome, 4.5 ± 0.78 for pain, 4.1 ± 0.92 for the number of procedures, and 4.7 ± 0.97 for adverse effects. The average number of actual procedures was 6.7 ± 1.20. The average Kirby-Desai score was 7.1 ± 1.45. Their correlation coefficient was 0.803, which is considered a strong positive correlation. Conclusion Picosecond lasers have a remarkable ability to degrade smaller tattoo pigments through a photoacoustic effect. Moreover, a picosecond laser treatment for tattoo removal can be a safe and effective method. Picosecond lasers are a promising technology with the potential to optimize the treatment of tattoos.

• 조형예술학연구
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• 제12권
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• pp.97-124
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• 2007

본 논문은 도가(道家)의 대표적 철학자인 "장자(莊子)"의 "소요유(逍遙遊)"에 제시된 '유(遊)'란 개념이 미술교육에서 필요한 것인지를 연구하였다. 우선 장자의 '유(遊)' 개념과 미술교육의 배경 및 필요성을 정의하고, 동양미술에서 활용된 '유(遊)'의 의미를 미학적으로 분석하여 오늘날 '유(遊)' 개념이 현대동양미술교육에 응용되고 표현될 수 있는지 탐색하는데 역점을 두었다. 논문의 전개 중 제2장은 장자의 철학적 '노닐음(유(遊))'의 개념 및 사유, 제3장은 미술교육의 배경 및 필요성을 연구하였다. 제4장은 장자의 노닐음(유(遊))'을 통한 동양화실기교육 접근을 연구하였다. 우선 노닐음(유(遊))'을 통한 동양화실기교육 접근을 2장에서 연구된 사유방법으로서 공간개념인 '허실(虛實)'과 표현기법으로 '필묵(筆墨)', 작가의 정신적 화면의 경지는 '사의(寫意)'로써 각각 분석 연구하였다. 첫째, '유(遊)'와 동양화의 상호관계성을 허실(虛實)의 조형이념으로 고찰 했을 때, 허(虛)는 그외 대상이 본질로 드러난 실(實)의 부분으로 하여금 감상자들에게 연상과 암시, 상상을 불러일으켜 예술가가 표현하고자 하는 적극적인 잊음(유(遊))의 경계를 뜻하므로 '허(虛)'는 '유(遊)'와 서로 같은 경계의 맥락이라 할 수 있다. 따라서 허(虛)와 실(實)은 조형 활동의 경험을 통하여 표현 및 감상 능력을 길러, 창조성을 계발하고 정서를 함양시켜 미술교육에서 필요성이 나타남을 알 수 있었다. 둘째, 필묵으로 음(陰)과의 양(陽)의 걍약으로 신(神), 기(氣)(심제(心齊)), 전신(傳神), 사의(寫意)등을 각각의 예술적 경지를 표현하는 것이다. 따라서 필묵은 형사(形似)와 사의적(寫意的)적인 예술형상의 창조까지 연계되어 있는 중요한 것이다. 따라서 정신적 '노닐음'의 경계를 통한 자유로움은 사유에 의한 표현 할 수 있는 창조력과 자연 감상능력 및 미적 문화의 가치를 판단할 수 있는 교육을 탄생시킬 수 있는 것이다. 이상의 결과로 볼 때, 미적 안목의 육성, 창의성 계발, 감성능력의 함양, 조형능력의 함양 등의 인성교육으로 복합적인 미적 논리가 다양한 현대미술 속에서 동양미술교육의 정체성을 지킬 수 있는 하나의 방법론이라 본다.

• 영재교육연구
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• 제26권1호
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• pp.77-99
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• 2016

본 연구의 목적은 GI-STEAM 모형에 기반하여 개발된 영재 프로그램이 초등영재의 리더십과 창의적 인성, 학습몰입에 미치는 영향을 검증하는 데 있다. GI-STEAM 수업모형은 협동학습 모형 중 집단탐구 모형(Group Investigation)과 STEAM 학습준거틀을 융합한 모형을 말한다. 연구참여자는 경기도 소재 Y시 초등학교 6학년 영재학급 학생 16명이며, 리더십, 창의적 인성, 학습몰입에 대한 사전검사를 실시하였다. 이후 GI-STEAM 프로그램 12차시를 적용한 후 리더십, 창의적 인성, 학습몰입에 대한 사후검사를 실시하였고, 프로그램에 대한 소감문 및 개별면담을 실시하였다. 사전-사후검사 결과를 대응표본 t-검정을 통하여 분석한 결과는 다음과 같다. 첫째, GI-STEAM 프로그램은 리더십의 개인 간 영역을 유의미하게 높여주는 것으로 나타났다. 하위영역으로는 의사표현, 조직관리 영역, 사회헌신, 팀워크에서 유의미한 향상이 나타났다. 둘째, GI-STEAM 프로그램은 창의적 인성영역에 있어서 유의미한 차이가 나타나지 않았고, 하위영역 중 심미성 영역에서 유의미한 향상이 나타났다. 셋째, GI-STEAM 프로그램은 학습몰입에 있어서 유의미한 향상을 보였다. 하위영역에서는 도전과 능력의 조화, 행위와 의식의 통합, 구체적인 피드백, 자기목적적 경험에서 유의미한 향상이 나타났다. GI-STEAM 프로그램은 교육부에서 제시한 2015 개정교육과정의 '창의융합형' 인재의 핵심역량 중 의사소통 역량, 심미적 감성역량, 공동체 역량 등을 기르는 데 효과적임을 알 수 있으므로, GI-STEAM 모형을 활용한 다양한 프로그램을 개발하여 교육현장에 제공할 필요가 있다고 판단된다.

• 한국실내디자인학회논문집
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• 제21호
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• pp.10-16
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• 1999

Mathematics is considered to the beginning of designing thinking because of the sense of logical order system. In this study, it was regarded the mathematics as the logic and the measurement of design system. as is often the case in history, mathematics, it is regard as conceptual model of architectural though, as aesthetic proportional measure and the mirror of thought. The direction of this study is rather multi-sided approaching to the spatial concept than one-sided plane. It is multi-acceptable way to apply mathematical principle to the pace and to be a flexible one. And boundary of interpretation of the flexibility means potential use-ability, and the strictly meaning of flexibility means that the acception of the various Secession and the Change of space. And the various interpretation of the flexibility only can expressed in the relation of opposite concept: the assembly and the disassembly, the expand and the decease, the open and the close and the construct and the de-construct. Mathematics provide the resonable way in architectural thinking and endow the order as logical organizatiov. Regarding these facts, this research is for making it possible to consider the expression property of interior space combination as the way of understanding the accepting of the changes of the times with the mathematical induction, using the rational method like the mathematical arrangement organizatiov.

• International Journal of Concrete Structures and Materials
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• 제7권1호
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• pp.79-93
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• 2013

One of the biggest problems affecting bridges is the transverse cracking and deterioration of concrete bridge decks. The causes of early age cracking are primarily attributed to plastic shrinkage, temperature effects, autogenous shrinkage, and drying shrinkage. The cracks can be influenced by material characteristics, casting sequence, formwork, climate conditions, geometry, and time dependent factors. The cracking of bridge decks not only creates unsightly aesthetic condition but also greatly reduces durability. It leads to a loss of functionality, loss of stiffness, and ultimately loss of structural safety. This investigation consists of field, laboratory, and analytical phases. The experimental and field testing investigate the early age transverse cracking of bridge decks and evaluate the use of sealant materials. The research identifies suitable materials, for crack sealing, with an ability to span cracks of various widths and to achieve performance criteria such as penetration depth, bond strength, and elongation. This paper also analytically examines the effect of a wide range of parameters on the development of cracking such as the number of spans, the span length, girder spacing, deck thickness, concrete compressive strength, dead load, hydration, temperature, shrinkage, and creep. The importance of each parameter is identified and then evaluated. Also, the AASHTO Standard Specification limits liveload deflections to L/800 for ordinary bridges and L/1000 for bridges in urban areas that are subject to pedestrian use. The deflection is found to be an important parameter to affect cracking. A set of recommendations to limit the transverse deck cracks in bridge decks is also presented.