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에너지 전환 소자용 TiO₂/CNT 하이브리드 나노 섬유 전극
서재섭(Seo, Jae-Sub),김주용(Kim, Joo-Yong),진형준(Jin, Hyoung-Joon),강민성(Kang, Min-Sung) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
TiO₂ electrode electrospun directly onto the substrate was developed for energy conversion device. To enhance energy conversion efficiency of dye-sensitized solar cell, electrodes should have higher surface area to absorb more dyes and higher conductivity to reduce recombination of generated electrons. TiO₂ nanofibers with higher surface areas were fabricated by annealing electrospun TiO₂/PVP nanofibers at 500?C for 3 hrs in air. it was revealed that TiO₂ nanofiber electrodes is hybrid with MWNT showed higher conductivity than TiO₂ semiconductor electrode possibly due to band gap change.
문서영(Seo-Young Moon),민경원(Kyeong-Won Min),서재섭(Jae-Sub Seo),이선우(Seon-Woo Lee),고윤석(Yun-Seok Ko) 한국전자통신학회 2020 한국전자통신학회 논문지 Vol.15 No.1
본 논문에서는 현대 사회에서 도어락의 보안성 취약으로 인한 범죄사건들에 대해 보완이 필요하다고 생각하여 보안능력을 강화한 3중 보안 시스템 스마트 도어락을 연구하였다. 앱 이클립스 프로그램을 기반으로 제작한 핸드폰 어플을 통해 도어락 ON&OFF시스템과 음성인식기능, 광학식 지문센서를 사용한 지문인식 기능을 최종으로 잠금과 잠금해제가 가능한 삼중 보안 도어락을 실험, 제작하였다. 끝으로, 실험 제작된 3중 도어락에 대한 앱 기반 동작 실험, 음성 인식 동작실험, 실험지문 인식 동작실험에 대한 평가결과를 통해 도어락의 보안성을 강화할 수 있음을 확인할 수 있었다. We studied smart door lock of triple security system that strengthened the security capability as it is thought that the criminal case by security vulnerability of door lock is serious in modern society. Remote locking/unlocking function, voice recognition function through mobile phone application built on Eclipse App and optical fingerprint recognition function are implemented in the door lock. Finally, it was confirmed that the security of the door lock can be strengthened through evaluation results of the app-based operation test, the voice recognition operation test, and the fingerprint recognition operation test on the experiment-made door lock system.
김주용,서재섭,김한도,이준석,Kim, Joo-Yong,Seo, Jae-Sub,Kim, Han-Do,Lee, Joon-Seok 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.6
Recently, aromatherapy as a part of alternative medicine has attracted a great deal of public and scientific Interest mainly due to their health-promoting effects. The perfumed finishing was used to apply methods of aromatherapy. But sensory assessment is the only method for assessment of perfumed finishing because it is insufficient standard process. This research Is focused on measuring quantity of miciocapsules as an objective measurement using microscopic analysis and gas chromatography-mass spectrometry (GC-Mass) and analyzing correlation with sensory assessment as a subjective measurement to provide basic data about a new standard method.