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RISS 인기검색어
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- 저자 : 임태욱 ( Tae Uk Lim ) (검색결과 4 건)
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PDMS 몰드 기반의 선택적 파단 위치 제어가 가능한 캡슐 제작 공정 개발
임태욱 ( Lim Tae-uk ),성호 ( Cheng Hao ),왕수러 ( Wang Shu-le ),호걸 ( Hu Jie ),정원석 ( Jung Won-suk ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
Recently, research on the self-healing of concrete using bacteria has been actively conducted. The self-healing method using bacteria has a low self-healing rate and the surrounding environment of the fracture site is very important. A previous study to solve this problem involves the manufacture of capsules using 3D printing. Fracture position control was an important topic in 3D printing-based capsules. In this study, to compensate for the shortcomings of existing studies, a capsule capable of selective destruction location control was produced using PDMS-based molds that are not restricted by the environment. Resin capsules were prepared for each part using several molds and a bonding surface was arranged. In order to verify this on the bonding surface, fracture strength and wave unit values were analyzed through a three-way compression experiment. It can be seen that as the curing time increases, the deviation between samples decreases. In addition, through experiments, it was confirmed that the junction surface and wave unit values coincide in all three directions. It can be used for self-healing research using various solutions.
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임태욱 ( Lim Tae-uk ),성호 ( Cheng Hao ),호걸 ( Hu Jie ),왕수러 ( Wang Shu-le ),정원석 ( Jung Won-suk ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
3D printer-based self-healing capsules have been proposed to heal cracks by enabling various structural designs, repeatable fabrication, and strength analysis of the capsules. The Fusion Deposition Modeling (FDM) method was used to design, analyze, and produce new self-healing capsules that are widely used at low cost. However, PLA extruded from FDM has low interlayer adhesion energy, and thus strength varies depending on the angle of load applied to the laminated layer and the concrete structure, thereby degrading the performance of the self-healing capsule. Therefore, in this paper, the structure of the capsule manufactured by the FDM PLA method has isotropic strength was designed. In addition, the fracture strength in the x, y, and z directions of the load applied through the compression test was analyzed. As a result, it was confirmed that the newly proposed capsule design has an isotropic fracture strength of 1400% in all directions compared to the existing spherical thin-film capsule.
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밀리미터 전자기파를 이용한 콘크리트 내부 자가치유 캡슐의 위치 측정을 위한 3D 프린팅 자가치유 캡슐의 공진 주파수 분석
임태욱 ( Lim Tae-uk ),성호 ( Cheng Hao ),이영준 ( Lee Yeong Jun ),호걸 ( Hu Jie ),김상유 ( Kim Sangyou ),정원석 ( Jung Wonsuk ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.2
In this paper, experiments were conducted on signal amplification of polymer capsules for application to Ground Penetrating Radar so as to enable real-time monitoring of polymer capsules inside concrete using the Morphology Dependent Resonance phenomenon. A TEM CELL and a vector network analyzer were used to analyze the difference in resonance frequency depending on the material of the sphere and the presence or absence of fracture. In order to manufacture a capsule of a size that can be measured using millimeter waves used in GPR, we manufactured a capsule with a 3D printer and analyzed the effects of the presence or absence of coating and the size of the capsule on the resonance frequency. Resonant frequency or signal amplification is more affected by diameter than coating. The capsule showing the highest amplification is the resin-coated 50 mm diameter capsule with a 316-fold increase and the lowest capsule is the uncoated 10 mm diameter capsule with a signal amplification of 11.9 times. These results demonstrate the potential of GPR to measure the position and state of self-healing capsules, which are small-sized polymers, in real time using millimeter waves.
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시청자들의 종합격투기 스타속성인식 및 시청정도와 시청만족의 관계
성낙훈 ( Nak Hun Seong ),임태욱 ( Tae Uk Lim ) 대한무도학회 2011 대한무도학회지 Vol.13 No.1
이 연구는 시청자들의 종합격투기 시청정도 및 스타속성인식과 시청만족의 관계를 규명하여 종합격투기스타선수들을 발굴하고, 이들을 활용한 다양한 마케팅전략을 수립하여 종합격투기가 하나의 프로 스포츠로서 전체적인 발전과 저변확대에 필요한 기초자료를 제공하는 데 목적이 있다. 국민 생활체육 전국 이종격투기 연합회와 협력중인 (주)엔트리안에 등록되어 있는 서울에 소재하는 체육관의 수련 경험자 중, 종합격투기를 시청한 경험이 있는 수련생은 약 1800여명으로 파악되었다. 그 중 설문에 응답한 300명의 자료에서 부적합한 자료 99부를 제외한 201부의 자료가 연구 목적에 따라 통계 처리 되었다. 자료처리는 SPSS 15.0 Version을 이용하여 빈도분석, 요인분석, 신뢰도 검증, 상관분석, 다중회귀분석을 실시하였으며 다음과 같은 결과를 얻었다. 첫째, 스타속성이 시청만족에 미치는 영향 중, 스타속성은 내적만족에 전문성·유사성에서, 외적만족에 호감성·유사성이 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 시청정도는 내적만족에 시청빈도·시청시간·시청기간이, 외적만족에 시청빈도·시청시간이 정(+)의 영향을 미치는 것으로 나타났다. 이러한 결론들을 종합하여 살펴보았을 때, 종합격투기 경기에서 스타속성이나 시청정도는 매우 중요한 변인임을 확인할 수 있었다. The purpose of this study is to investigate the relationship of mixed martial arts players` star attributes recognition and viewing satisfaction of the audience for discovering star players as one of professional sports. It provides the basic data for mixed martial arts through establishing various marketing strategies. The population was selected from 300 viewers, attending Co. Entrian that is cooperating with Korea MMA Association of sports for all. The data was collected about 201 people`s data except 99 people`s data which are insincerity or missing question. The convenient sampling method was used. The collected questionnaires were processed frequency analysis, factor analysis, reliability test, correlation analysis, and multiple regression through utilizing SPSS 15.0 version. The results run as follows: First, in viewing satisfaction in star attributes was indicated positive effect on internal satisfaction of expertness and similarity, external of likeability and similarity. Second, the viewing degree were indicated effect on internal satisfaction of viewing frequency, average viewing time and viewing period, external satisfaction, external satisfaction of viewing frequency and average viewing time. Given synthesizing the above contents, the conclusion indicated that the relationship of mixed martial arts players` star attributes recognition and viewing satisfaction on the audience was existed causality.
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