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조선총독부의 경복궁 활용 의도와 그 실제 - 박람회 배치도의 변화를 통하여 -
장세정(Jang, Sejeong),우동선(Woo, Don-Son) 대한건축학회 2024 대한건축학회논문집 Vol.40 No.2
In 1916, the Japanese Government General of Korea initiated the construction of a new government building and concurrently released The Site and Layout of the Official Residence in Gyeongbokgung Palace. This announcement, part of a broader new building development plan, outlined a long-term master plan for the complete transformation of Gyeongbokgung Palace into the Japanese Government General Building over the following 30 years. The plan notably proposed the development of Gyeongbokgung Palace as a multifunctional site, encompassing a government building, park, and official residence. This study compares and analyzes various layout drawings to investigate the effectiveness of the master plans characteristics. Findings reveal that these characteristics were effectively implemented through the destruction of Gyeongbokgung buildings, the Joseon Product Evaluation Expo in 1915, and the Joseon Expo in 1929. The following chapters examines the implementation of the Gyeongbokgung Palace under the influence of this master plan.
모바일 콘텐츠 활용과 모바일 인터넷에 대한 적극적 태도와의 연관성 분석
장세정(Sejung Jang),진서훈(Seohoon Jin) 한국전자거래학회 2016 한국전자거래학회지 Vol.21 No.4
국내 무선인터넷 산업은 지속적으로 성장하여 향후 웹 접속의 대표기기는 PC가 아닌 모바일 디바이스가 될 것으로 전망된다. 이러한 모바일 디바이스 수요의 폭발적인 증가는 우리들의 시간․공간적 제한을 사라지게 하는 등 편리한 생활을 누릴 수 있도록 만들어 주었지만 정보격차 등 여러 가지 부작용도 나타나게 되었다. 본 논문에서는 모바일 기기를 활용한 콘텐츠 활용도와 모바일 인터넷에 대한 적극적 태도를 세대 간, 교육수준, 경제수준에 따라 분석하고 모바일 콘텐츠 활용의 높음이 적극적 태도에 영향을 주는지에 대해 분석하고자 한다. 연구결과, 연령대가 젊을수록, 교육수준이 높을수록, 경제수준이 높을수록 모바일 콘텐츠에 대한 이용도가 높고 모바일 인터넷 이용에 대한 적극적 태도도 높으며, 모바일 콘텐츠에 대한 이용도가 높을수록, 모바일 인터넷 이용에 대한 적극적 태도도 높다는 것을 확인하였다. 이러한 분석 결과는 모바일 콘텐츠의 활용, 적극적 태도에 개인 특성에 따른 격차를 파악하여 이를 완화시켜줄 정책에 활용하고자 한다. As the industry of Mobile Internet has been gradually developed, the major device for accessing the web is predicted to shift from PC to Mobile devices in the near future. This drastic increase of demand in Mobile devices has drawn a more convenient standard of living by transcending time and space in our lives, however, it triggered various side effects such as a digital divide. This study was conducted to analyze how people utilize the contents via Mobile devices and their active attitude toward Mobile Internet by dividing individual characteristics into generations, education level and income level, and also identify whether Mobile contents utilization has an effect on the active attitude. The research results could be used for establishing a policy to narrow the gap in Mobile contents use and active attitude by individual characteristics.
헬무트 락헨만(H. Lachenmann)의 《어린이 놀이(Ein Kinderspiel)》에서 보여지는 피아노 연주기법의 연구
장세정 ( Se Jung Jang ) 한국피아노학회 2010 피아노음악연구 Vol.4 No.-
Contemporary music has been immensely developed in the twentieth century after that tonal music had been decayed. Contemporary music takes an important place in the world of music in Europe and USA as well as Korea these days. For example, Korea holds several contemporary music festivals such as Tongyeong International Music Festival, Pan Music Festival, and so on. Korean students, however, barely learn or perform contemporary music. Moreover, it is not performed at all in Korea which is the advant-garde music, a kind of music played in unusual and unconventional ways. Helmut Lachenmann (1935-), one of the greatest German composers, suggests several modern piano techniques in his Ein Kinderspiel for piano. These pieces utilize interesting skills to explore different sound on the piano using simple structures. Ein Kinderspiel(1980) has short seven pieces with titles which are influenced by children`s amusement. He dedicated these pieces to his son. He uses unusual performance techniques such as cluster, cluster stumm, rhythm pedal, sostenuto pedal, extreme accent and dynamic, harmonics, dissonant harmony and repetitive pedals. On these days, contemporary composers try to find even more possibilities to make sound on the piano. Pianists need to accept this reality and participate to contribute on the development of the contemporary music.
광학용 아크릴 점착제내 단량체 화학구조에 따른 점착특성
백승석(Seung Suk Baek),장세정(Se Jung Jang),이상원(Sang Won Lee),황석호(Seok Ho Hwang) 한국고분자학회 2014 폴리머 Vol.38 No.5
2-Ethylhexyl acrylate와 2-hydroxyethyl acrylate의 기본구조에 다양한 곁사슬 화학구조를 가지는 단량체의 종류를 변화시키면서 광중합된 고투명 3원 공중합체 시럽을 합성하였다. 시럽에 가교제로 1,6-hexanediol diacrylate와 광개시제를 혼합한 후 UV-광원을 조사시켜 점착제(PSAs)를 제조하여 점착특성과 광학특성을 고찰하였다. PSAs의 점착물성은 단량체 종류에 따른 조성비에 크게 의존하고 있으나, 광학적 특성이 유사함을 확인하였다. 상대적으로 부피가 큰 분자이면서 헤테로 원소를 포함하고 있는 IBOA, THFA, ACMO 단량체가n-BA, VAc, CHA 단량체보다 좋은 점착물성을 보여주었다. To prepare transparent acrylic pressure sensitive adhesives(PSAs), terpolymer syrups were photo polymerized from 2-ethylhexyl acryl ate and 2-hydroxyethyl acrylate with third monomerhaving different chemical structure. After polymerization, 1,6-hexanediol diacrylate as a crosslinker and a photoinitiatorwere added and then UV-irradiated to prepare the PSAs. The adhesion performances and optical characteristics of the PSAs were investigated. Their adhesion performance was dependent on the composition of monomers in the polymer chain but optical properties were maintained at a suitable level. The PSAs prepared by bulky and heteroatom-containing monomers such asI BOA, THFA, and ACMO showed better adhesion performance than others.
백승석(Seung Suk Baek),장세정(Se Jung Jang),이종훈(Jong Hoon Lee),고동한(Dong Han Kho),이상훈(Sang Hoon Lee),황석호(Seok Ho Hwang) 한국고분자학회 2014 폴리머 Vol.38 No.2
본 연구는 2-ethylhexyl acrylate와 2-hydroxyethyl acrylate 기본구조에 isobornyl acrylate와 tetrahydrofurfurylacrylate(THFA)의 조성비를 변화시키면서 광중합된 4원 공중합체를 합성한 후 가교제로 1,6-hexanediol diacrylate가혼합된 시럽을 제조하였다. 합성한 시럽에 UV-광원을 조사시켜 점착제를 제조한 후 점착특성과 광학특성을 고찰하였으며 시럽의 기본물성인 고형분, 점도, 및 분자량 분석도 수행하였다. THFA의 함량이 증가할수록 시럽의 분자량은 감소하였으나 고형분은 반대로 증가하였다. 점착제의 박리강도는 THFA의 함량에 따른 반비례관계를 나타내고점착제의 표면에너지는 비례관계를 나타내었다. 또한 모든 점착제에서 92% 이상의 광투과도와 1.0%이하의 haze값,그리고 1.0 이하의 색차계값을 보여주었다. To prepare acrylic pressure sensitive adhesives (PSAs), quaternary copolymer syrups were photopolymerized from 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate as default constituents and isobornyl acrylate and tetrahy-drofurfuryl acrylate (THFA) as variable constituents. After polymerization, 1,6-hexanediol diacrylate and photoinitiator were added and then crosslinked by UV-irradiation to prepare the PSAs. The characteristics of the syrup such as viscosity, molecular weight, and solid content were investigated. As increasing THFA contents, the relationship between molecular weight and solid content of the syrup was reciprocal. Also, the relationship between peel strength and surface energy of the PSAs showed the same tendency. All the PSA samples showed high transmittance (more than 92%), low haze (less than 1.0%) and low color-difference (less than 1.0).
가교제 변화에 따른 광학용 아크릴 점착제의 점착물성에 대한 연구
백승석 ( Seung Suk Baek ),장세정 ( Se Jung Jang ),황석호 ( Seok Ho Hwang ) 한국고무학회 2014 엘라스토머 및 콤포지트 Vol.49 No.3
아크릴 단량체인 2-ethylhexyl acrylate (2-EHA), 2-hydroxyethyl acrylate (2-HEA), isobornyl acrylate (IBOA)를 광중합을 통하여 3원 공중합체 시럽을 합성하였다. 이관능기 아크릴 단량체인 1,6-hexanediol diacrylate (HDDA), poly(ethylene glycol) diacrylate (PEGDA, Mn = 250, 575, 700)를 가교제로 사용하여 semi-IPN형 감압성 점착제 (Pressure sensitive adhesives; PSAs)를 UV-광가교 시켜 제조하였다. 가교제 변화에 따른 감압성 점착제의 점착특성, 저장탄성율, 그리고 광학특성을 고찰하였으며, 점착특성과 저장탄성율은 가교제의 화학구조와 분자량에 의존하였다. 광학특성은 모든 감압성 점착제에서 92.5 % 이상의 광투과도 (at 550 nm), 1.0% 이하의 haze값, 0.3 이하의 색차계값을 보임을 확인하였다. 결과적으로 가교제의 종류에 영향을 받지 않음을 확인하였다. Terpolymer syrups were photopolymerized from 2-ethylhexyl acrylate, 2-hydroxylethyl acrylate and isobornyl acrylate to prepare acrylic pressure sensitive adhesives (PSAs). After polymerization, various crosslinkers as 1,6-hexanediol diacrylate (HDDA), poly (ethylene glycol) diacrylate (PEGDA, Mn = 250, 575, and 700) were added and then UV-irradiated to prepare the semi-IPN type PSAs. Their adhesion performance and storage modulus (G`) were strongly dependent on their chemical structure and molecular weight of the crosslinkers. Optical properties such as transmittance (> 92.5 %), haze (< 1.0 %) and color-difference (< 0.3) of PSAs samples were not affected by crosslinker types used in this study.