• 한국위험물학회지
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• 제3권1호
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• pp.52-58
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• 2015

Since the HF release in 2012 in Korea, it became one of the most significant to evaluate consequence to the vicinity of industry facilities handling hazardous materials. BTX plant is selected to assess off-site risk to check whether the facility satisfies the Chemical Control Law by Korea Government. Accident scenarios were listed using process safety information. The scenarios having effect to the off-site were selected and assessed further according to guideline provided by Korea government. Worst case and alternative scenarios including other interested scenarios were evaluated using ALOHA. Each evaluated scenario was assessed further considering countermeasures. The results showed that the facility handling chloric acid is safe enough and needed no further protections at the moment.

• 한국위험물학회지
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• 제3권1호
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• pp.59-64
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• 2015

Semiconductor industry has large number of chemical inventory and is easily exposed to chemical release incidents. Toxic release is one of the most interested area in evaluating consequence to the vicinity of industry facilities handling hazardous materials. Hydrofluoric acid is one of the typical chemical used in semiconductor facility and is selected and toxic release is evaluated to assess the risk impacted to its off-site. Accident scenarios were listed using process safety information. The scenarios having effect to the off-site were selected and assessed further according to guideline provided by Korea government. Worst case and alternative scenarios including other interested scenarios were evaluated using ALOHA. Each evaluated scenario was assessed further considering countermeasures. The results showed that the facility handling hydroflooric acid is safe enough and needed no further protections at the moment.

• 한국비블리아학회지
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• 제27권1호
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• pp.135-155
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• 2016

본 연구는 장애인을 위한 도서관 대체자료 제작 및 활용의 근거가 되는 정책 및 법령의 분석과 이해당사자와의 면담을 통해 관련 문제점을 논하는 데 목적이 있다. 이를 위해 대체자료의 정의와 유형을 논하고, 장애인 정보접근권을 위한 제도적 노력의 연혁을 살펴본다. 정책 영역에서 제1차 및 제2차 도서관발전종합계획 중장애인 서비스 관련 부문을 분석하고, 법률 영역에서 도서관 대체자료와 관련하여 장애인, 도서관, 출판사 등 관련 집단의 권리와 의무를 규정하고 있는 "도서관법", "장애인복지법", "저작권법"을 논한다. 정책 및 법률 분석을 기반으로 대체자료 관련 이해당사자들의 인식과 입장을 분석하고자 심층 면담을 실시한다. 결론에 갈음하여, 이상의 논의를 바탕으로, 대체자료에 관한 5가지 문제를 논한다.

• Journal of the Korean Data and Information Science Society
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• 제21권1호
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• pp.61-70
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• 2010

오늘날 현대인들은 건강한 삶, 질적인 삶을 영위하기 위하여 부작용 없이 손쉽게 자신을 관리하는 방법들을 모색하게 되었고 최근에는 각종 보완대체의학에 대한 관심이 점차 늘어나고 있다. 보완대체 의학이란 미국에서 사용되는 학술용어로서, 그동안 문제가 되어온 현대 의학적 난제들을 해결하는 대안으로 제시할 수 있는 자연치료의 의학적 방법들을 총칭하고 있다. 이러한 보완대체의학이 지금보다 더 활성화되기 위해서는 이용자의 주관성에 기초한 연구가 있어야 한다. 이에 본 연구는 주관적 유형분석 방법인 Q방법론을 활용하여, 보완대체요법 선호에 관한 유형과 유형에 따른 특성을 파악함으로써 특성에 대한 이해를 높이고 선호요인을 찾아내어 보완대체의학을 실제적으로 적용하기 위한 사정시 기초자료를 제공하고자 수행되었다. 그 결과 3가지 유형-'생물/약용식물요법 선호형' (제1유형), '혼합 선호형' (제2유형), '수기요법 선호형' (제3유형)-으로 구조화됨을 알 수 있었다.

• 한국분말재료학회지
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• 제29권3호
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• pp.219-225
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• 2022

An alternative fabrication method for carburizing steel using spark plasma sintering (SPS) is investigated. The sintered carburized sample, which exhibits surface modification effects such as carburizing, sintered Fe, and sintered Fe-0.8 wt.%C alloys, is fabricated using SPS. X-ray diffraction and micro Vickers tests are employed to confirm the phase and properties. Finite element analysis is performed to evaluate the change in hardness and analyze the carbon content and residual stress of the carburized sample. The change in the hardness of the carburized sample has the same tendency to predict hardness. The difference in hardness between the carburized sample and the predicted value is also discussed. The carburized sample exhibits a compressive residual stress at the surface. These results indicate that the carburized sample experiences a surface modification effect without carburization. Field emission scanning electron microscopy is employed to verify the change in phase. A novel fabrication method for altering the carburization is successfully proposed. We expect this fabrication method to solve the problems associated with carburization.

• 한국의류학회지
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• 제44권4호
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• pp.610-625
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• 2020

This study suggests an alternative breast-prosthesis-making process for female breast cancer patients. From June 2018 to July 2018, we conducted a study using nine females between the ages 40-50 who never had breast cancer. We recorded the reported subjective sensations and objective physiological responses to different types of artificial breast materials: Trulife silicon breast prostheses (TS) and hand-made silk breast prostheses (HS). Considering the materials used in TS and HS individually, we studied the subjective sensation with regards to how each material functioned in a photo (VP), movement (VM) and the visual tactility (VT) sense. The results showed that comparing VP and VT led to more significant differences than those comparing VM and VT. In addition, there was a significant difference in terms of tactile sensation when comparing TS and HS with respect to subjective responses to texture. Subjects reported that HS felt more comfortable and gave a better cooling sensation. However, the measured objective physiological responses indicated that skin temperature was higher with HS than TS when touched. This research contributes to scholarship around alternative and new materials to build breast prostheses for women with breast cancer.

• 한국식품영양학회지
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• 제25권4호
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• pp.974-979
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• 2012

This research was carried out to find herbal preservatives for Makgeolli, as Makgeolli loses its commercial value due to overproduced acidic materials. When Makgeolli was kept at $25^{\circ}C$ to find the changes in acidity, total microbial cell number, yeast cell number, and bacterial species variety, a sudden increase of acidity as well as the disappearance of yeast cells occurred at day 6, and Makgeolli was changed to complete off-flavor. Acetobacter pasteurianus is the main acidifier in Makgeolli and shows a synergy effect in acid formation when cultured in combination with Lactobacillus casei. Among 12 herbs, the ethanol extract of Sutellaria baicalensis showed antimicrobial activity against A. pasteurianus, whereas the ethanol extract of Coptidis rhizoma showed antimicrobial activity against L. casei. Makgeolli added with Sutellaria baicalensis extracts demonstrated a lower acidity than that with Coptidis rhizoma extracts, which indicates that the inhibition of an acetic acid former is more important than that of a lactic acid former in Makgeolli preservation. Sutellaria baicalensis extracts prolonged the shelf life of Makgeolli by 1~2 weeks at a minimal inhibitory concentration ($0.63mg/m{\ell}$) during storage at $10^{\circ}C$.

• 한국식품영양학회지
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• 제25권4호
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• pp.951-956
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• 2012

This research was carried out in order to discover acid-forming bacteria during fermentation of Makgeolli, as Makgeolli loses its commercial value due to overproduced acidic materials. In Makgeolli kept at $25^{\circ}C$, a sudden increase of acidity as well as the disappearance of yeast cells occurred at day 6, whereas the total cell count and bacterial type remained unchanged; the result implies that a succession of bacterial types, including acid forming bacteria, occurred. Two acid-forming bacteria were isolated from acidified Makgeolli and were identified as Acetobacter pasteurianus and Lactobacillus casei. When fresh and heat-treated Makgeolli were inoculated with Acetobacter pasteurianus and/or Lactobacillus casei, the greatest amount of acid was formed in Makgeolli inoculated with Acetobacter pasteurianus and Lactobacillus casei and also in Makgeolli with Acetobacter pasteurianus alone. This result indicates that Acetobacter pasteurianus is the main acidifier; furthermore, it shows the synergy effect in acid formation with Lactobacillus casei.

• 한국실내디자인학회논문집
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• 제21권6호
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• pp.224-232
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• 2012

Although evolution of construction materials brought about development of modern architecture, they caused destruction of the environment and pollution. This problem is not a new one in terms of ecological esthetics and materials of sustainable architecture in light of the Eastern view of nature and this idea became a background of this study. The basic concept is to try to find out their characteristics from a perspective of ecological esthetics in relation to traditional building materials that nature, architecture, and humans coexist and live with each other to balance. Based on ecological esthetics and precedent studies on materials of traditional architecture, we investigated connections, expressive methods and characteristics in traditional residential construction space. This attempt has meanings in that it can propose a new framework of forming various viewpoints and spatial perceptions in relation to esthetics and traditional construction materials. The current study examined the characteristics by dividing them into tangible and intangible elements based on expressive features of elements of nature. The characteristics found by this process are not simply notion of physical materials, but plays a key role aesthetically and ecologically. Nature and materials take circulation of the law of nature, regulate energy, increase efficiency and play a major role in an economic way. Nature in itself becomes natural alternative energy, and plays its role in an invisible fashion. It examined how expressive characteristics of construction materials are reflected through analyzing residential space and Korean traditional garden having relationships with Eastern viewpoint of nature in relation to Korean traditional construction materials from a perspective of ecological esthetics. Findings of the above study indicate that expressive characteristics of Korean traditional construction materials from a perspective of ecological esthetics are that nature, space, humans coexist and live together and they will provide a clue to an alternative to solve ecological and environmental problems modern society will have in the future. Through this process, it provided a possibility that traditional space and materials can be succeeded in creative and new ways, and it found out the way for nature, space, and humans to coexist and a possibility of ecological esthetics. It addition, it will provide a key base as an alternative of sustainable design of the future.

• 한국환경성돌연변이발암원학회:학술대회논문집
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• 한국환경성돌연변이발암원학회 2003년도 추계학술대회
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• pp.32-32
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• 2003