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담배저장해충(Lacioderma Serricornine F .) 의 성유인 물질에 관한 고찰
신성철,양광규,김근수 한국농화학회 1989 Applied Biological Chemistry (Appl Biol Chem) Vol.32 No.1
Cigarette beetle(Lacioderma serricornine F.) is a serious pest of cured tobacco leaves. Of its pheromonal components, serricornin shows the strongest sexual stimulation. Other substances contribute as the supplementary factors cooperating with this component in the copulation of cigarette beetle. From spectroscopic evidence and synthetic studies, the structure of natural serricornin has been determined to be (4S, 4S, 7S)-4, 6-dimethyl-7-hydroxynonan-3-one. It has been suggested that the pheromonal components isolated from this beetle may be derived from polyketide biosynthesis. Two nonasymmetric syntheses of serricornin will be reviewed in detail.
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Locative Substitution Errors by English L1-KFL Learners
신성철 한국언어문화교육학회 2008 언어와 문화 Vol.4 No.1
본 연구는 영어권 한국어 학습자가 빈번히 범하는 격조사 오류 가운데 처소격 조사의 대치 오류에 초점을 맞추어 그 오류의 빈도수를 측정하고 오류의 패턴 및 주요 오류 원인을 알아보는 데 있다. 이를 위해 3개 대학 한국어 학습자가 작성한 정규 작문 시험지에 나타난 문법 오류 가운데 조사 오류를 분석하였다. 조사 오류의 대부분인 대치 오류 가운데 처소격 조사의 대치 오류 빈도가 목적격과 주격 조사의 대치 오류 빈도 다음으로 높았다. 이는 김미옥(2002), 이정희(2003) 등의 오류 분석 선행 연구를 뒷받침하는 것이나 지금까지 처소격 조사 ‘–에’와 ‘–에서’의 대치 오류 원인에 대해서는 적절한 설명이 없거나 부족하였고 교육자의 직관에 맡겨 놓았던 것이 사실이다. 본 연구에서는 언어교육학적 관점과 교재 분석을 통해 오류 원인을 설명하고 교재 개발 시나 교정 교육 시에 도움이 될 수 있는 몇 가지 방법을 제시한다.
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Effects of Interface Properties on the Onset Thickness of Ferromagnetism in the Co/InP Hybrid System
신성철,박용성,정종율 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.5
We have investigated the effects of interface structures on the magnetic properties of the Co/InP hybrid system by using in situ surface magneto-optical Kerr effects (SMOKE), scanning tunneling microscopy (STM) and Auger electron spectroscopy (AES). InP(001) substrates with different surface characteristics were prepared by using cycles of ion bombardment and annealing (IBA) method while varying the annealing temperature from 400 ℃ to 450 ℃. The Co film begins to show a ferromagnetic hysteresis loop at a thickness of 2 nm of Co on the InP surface prepared at 400 ℃. However, the Co film deposited on the InP surface prepared at 450 ℃ shows no ferromagnetic signal up to a Co thickness of 16 nm. We observed from STM results that In droplets were produced when the InP substrate was annealed at temperatures higher than 400 ℃ during the IBA processes. The AES depth profile shows that interdiffusion between Co and In increases as the density of In droplets increases. These In droplets strongly interact with Co atoms and play a crucial role in the onset thickness for ferromagnetism in Co films.
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신성철 한국패키지디자인학회 2003 상품문화디자인학연구 Vol.14 No.-
Despite the characteristic of Package Design education that nequire a more specialized training (formative ability that can accommodate Two-Dimensional Space and Three-Dimensional at the same time, and understanding of materials and production process are required), the reality is such that it is studied under the conditions and processes that are similar to visual design. Package Design in the modern era of information age is now considered a key knowledge based industry in which product increases cultural value and that helps increase national competitiveness after breaking free from the one-time, standardized means of the industrial society that focused overly on productivity increase. Accordingly, the area of Package Design should equally share the role of a pillar in the Knowledge based society. What is even more important is that environment of design education at the universities that cultivate designers should be reformed in a way that suits the demands of the era and society. As such, a more effective educational opportunity should be provided to the students who are interested in studying Package Design. Moreover, method of expressing the form of design is one that recommends solution measures, accompanied by planned and scientific process, after identifying problems affecting affluent life of human beings. Accordingly, the purpose of Package Design education in the modern society is to teach students to absorb diverse information and vast data in the right manner and to train them on practical aspect to enable them to share quality and rich amount to knowledge. As such, students role in the society and their sense of mission are optimized as professional designers.
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신성철 한국패키지디자인학회 2000 상품문화디자인학연구 Vol.9 No.-
The market is getting more segmented and the consuming pattern is also getting more diversified. Therefore, the form of package makes a motive to promote purchasing of goods. Satisfying and pleasing the consumers with other things than goods is consequently the same as providing them with a service thereby inducing them to buy more goods by expressing the form of package into natural or artificial forms more friendly to people. Today sees many cases where factors to make goods more valuable have been added and positioned. In order to satisfy various consumers' requirements and differentiate their own goods from others', many manufacturers are making a variety of type of package. As such, the package design of today in the information age must have a value as communication media with unique forms and constitutions to make it possible to stimulate consumers' purchasing motive. This paper focuses on the basic study to discover the function of better package design and the possibility of development of package design in future in the development of brands by researching the physical properties of various forms of package design and their semantic and formative effects as communication media.
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자외선조사에 의한 나일론6 필름에의 아크릴산 그라프트중합
신성철,김상율,송석규,Sin, Seong-Cheol,Kim, Sang-Yul,Song, Seok-Gyu 한국섬유공학회 1989 한국섬유공학회지 Vol.26 No.3
The grafting of acrylic acid (AA) onto biaxially oriented nylon 6 film has been investigated by simultaneous irradiation technique in the aqueous solution in the presence of benzophenone (BP) as a photosensitizer. The effects of various reaction conditions involving monomer concentration, photosensitizer concentration, reaction time and temperature were studied. The grafting yield was increased with increasing AA and BP concentration up to limiting value and then decreased. The grafting yield increased with reaction time up to 90 min. and then levelled off. The grafting rate was increased with increasing the reaction temperature up to 6$0^{\circ}C$ but above that temperature decreased. The crystallinity of grafted film, evaluated from the result of DSC, was generally decreased with increasing grafting yield. The mechanical properties of grafted samples were also examined by the tensile tester. It has been found that the contact angle was decreased and the moisture regain and the degree of swelling were increased with increasing the grafting yield.
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