• 건축역사연구
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• 제23권2호
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• pp.81-90
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• 2014

This study aims to comprehend architectural peculiarity of the hermitage as the one of Buddhist architectural type in Korea. Although it has not defined properly, it has been demanded the architectural respondence according to the environment of times since the introduction from other countries. Gimryong-sa temple, founded in 1635, and the hermitages are the most appropriate objects for analysis because there are many documents still remained. It is possible to find out that there are some architectural peculiarity after review of the document and the field survey about Geumseon-am(金仙庵=金仙臺), Hwajang-am(華藏庵), Daeseong-am(大成庵), Yangjin-am(養眞庵). In the late of Joseon Dynasty, the group of buddhist proceeded the economical development and the extension of authority based on the family culture. The hermitage functioned for the self-discipline, the meeting of family, the enshrinement of portraits, the memorial ceremony of family at this point. In response to that, the architectural space which had combined residence and rite became preferred such as Inbeopdang(因法堂). And a Large Ondol room called Daejungbang(大重房) was applied and Ru(樓)-Maru was added as the place for rest.

• 전자통신동향분석
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• 제34권5호
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• pp.71-80
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• 2019

Gallium nitride (GaN) can be used in high-voltage, high-power-density/-power, and high-speed devices owing to its characteristics of wide bandgap, high carrier concentration, and high electron mobility/saturation velocity. In this study, we investigate the technology trends for X-/Ku-band GaN RF power devices and MMIC power amplifiers, focusing on gate-length scaling, channel structure, and power density for GaN RF power devices and output power level and output power density for GaN MMIC power amplifiers. Additionally, we review the technology trends in gallium arsenide (GaAs) RF power devices and MMIC power amplifiers and analyze the technology trends in RF power devices and MMIC power amplifiers based on both GaAs and GaN. Furthermore, we discuss the current direction of national research by examining the national and international technology trends with respect to X-/Ku-band power devices and MMIC power amplifiers.

• 품질경영학회지
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• 제47권1호
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• pp.151-162
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• 2019

Purpose: This study is in order to secure high quality of military supplies, it is important to secure design quality in the development phase. I will review how to establish a quality assurance system in the development phase based on the author's seminar presentation contents and application example of Hanwha Systems Co., Ltd. Methods: To guarantee design quality in the development phase, in 2002, quality assurance system that is adequate for SQA(Software Quality Assurance)'s requirements of CMM(Capability Maturity Model) was conduct. In 2009, based on the CMMI(Capability Maturity Model Integration) Level 5, there has been continuous and reenforced quality assurance activities. Results: By suggesting the construction and a case study on application of R&D quality assurance, it would be helpful for companies aiming to construct or enhance quality assurance system. Conclusion: To secure high quality for military supplies, a development QA system should be established to secure quality in the development phase. In addition, Total life cycle QA system for development, mass production and operation phase should be reestablished.

• 동아시아경상학회지
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• 제11권3호
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• pp.1-10
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• 2023

Purpose - Beauty service employees who perform emotional labor are becoming an important factor in their duties to be performed at customer contact with the emotional expression norms set and required by organizations and companies. There are health problems for beauty workers due to working environments such as physical, chemical, and social factors. Accordingly, this study presents practical ways to protect the health of beauty workers. Research design, data, and methodology - This review study was conducted by searching PubMed, Google Scholar, Riss, Scopus, and Research Gate. Beauty Health Care, Occupational Diseases, Beauty Industry, Beauty Employees, Work-Life Vallance (WLV). I referred to the keywords such as that. A total of 471 papers were searched, of which 46 were finally included in this study on the PRISMA flowchart. Result: The beauty service industry can be classified as a job with high job stress among the beauty industries, and establishing appropriate measures to effectively help beauty industry workers proves to be an important strategy for maintaining physically and mentally healthy lives. Conclusion - Active research is needed to create a healthy environment with sustainable well-being by identifying physical and mental outbreaks according to the degree of awareness through various causes of occupational diseases such as gender and environment of beauty industry workers.

• 한국조경학회지
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• 제45권6호
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• pp.160-170
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• 2017

현관식 기념 건축물로 축조하는 패방은 정표와 장려의 기능을 가지고 있다. 시대의 발전에 따라 더 많은 역사 문화적인 내용 및 사회 기능이 부여된다. 본 연구는 타이산 명승지 중부에 위치한 홍문궁의 4기 패방을 대상으로 문헌연구와 현장조사 및 시각적 분석 방법을 통해 기본 속성, 공간 척도와 공간 느낌, 기능 등 3가지 측면을 연구하였다. 연구 구간 안에 있는 패방의 재료는 모두 석조이며, 건조 위치에 따라 명승지 및 사찰의 패방 등의 2종과 기능에 따라 표지, 기념, 문형 등 3종이 있다. 형태와 크기를 보면 '공자등림처방(孔子登臨處坊)'이라는 패방의 수준이 가장 높아 유교 문화의 지위를 중요시하였음을 알 수 있다. 패방의 입지 공간은 실체와 감성 등 2가지 측면으로 상호 작용을 통해 이해하면 전체 경관의 공간적 의미를 완전하게 파악할 수 있다. 공간 척도로 볼 때 패방은 다른 경관요소와 서로 조화를 이루고, 한정된 선형 공간 중 사물 간 또는 사물과 사람 간 상호 비교를 통해 패방의 시선 초점 기능을 강조하고, 관광객들이 패방 아래를 통과할 때의 느낌을 증진시킬 수 있다. 홍문궁 패방은 공간을 합치고 규정하는 기능을 가지고 있다. 배열방식이 시선을 더욱 뻗어 나갈 수 있게 한다. 패방 위에 있는 대련과 글씨는 등산 전의 기대감을 증가시키고, 공간의 안내 기능을 강화시킨다.

• 한국안전학회지
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• 제35권1호
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• pp.97-106
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• 2020

The objective of this paper is to suggest a new quantification method for multi-unit probabilistic safety assessment (PSA) that removes the overestimation error caused by the existing delete-term approximation (DTA) based quantification method. So far, for the actual plant PSA model quantification, a fault tree with negates have been solved by the DTA method. It is well known that the DTA method induces overestimated core damage frequency (CDF) of nuclear power plant (NPP). If a PSA fault tree has negates and non-rare events, the overestimation in CDF drastically increases. Since multi-unit seismic PSA model has plant level negates and many non-rare events in the fault tree, it should be very carefully quantified in order to avoid CDF overestimation. Multi-unit PSA fault tree has normal gates and negates that represent each NPP status. The NPP status means core damage or non-core damage state of individual NPPs. The non-core damage state of a NPP is modeled in the fault tree by using a negate (a NOT gate). Authors reviewed and compared (1) quantification methods that generate exact or approximate Boolean solutions from a fault tree, (2) DTA method generating approximate Boolean solution by solving negates in a fault tree, and (3) probability calculation methods from the Boolean solutions generated by exact quantification methods or DTA method. Based on the review and comparison, a new intersection removal by probability (IRBP) method is suggested in this study for the multi-unit PSA. If the IRBP method is adopted, multi-unit PSA fault tree can be quantified without the overestimation error that is caused by the direct application of DTA method. That is, the extremely overestimated CDF can be avoided and accurate CDF can be calculated by using the IRBP method. The accuracy of the IRBP method was validated by simple multi-unit PSA models. The necessity of the IRBP method was demonstrated by the actual plant multi-unit seismic PSA models.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2015년도 제49회 하계 정기학술대회 초록집
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• pp.51.2-51.2
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• 2015

Understanding interfacial phenomena has been one of the main research issues not only in semiconductors but only in life sciences. I have been trying to meet the atomic scale surface and interface analysis challenges from semiconductor industries and furthermore to extend the application scope to biomedical areas. Optical imaing has been most widely and successfully used for biomedical imaging but complementary ion beam imaging techniques based on mass spectrometry and ion scattering can provide more detailed molecular specific and nanoscale information In this presentation, I will review the 27 years history of medium energy ion scattering (MEIS) development at KRISS and DGIST for nanoanalysis. A electrostatic MEIS system constructed at KRISS after the FOM, Netherland design had been successfully applied for the gate oxide analysis and quantitative surface analysis. Recenlty, we developed time-of-flight (TOF) MEIS system, for the first time in the world. With TOF-MEIS, we reported quantitative compositional profiling with single atomic layer resolution for 0.5~3 nm CdSe/ZnS conjugated QDs and ultra shallow junctions and FINFET's of As implanted Si. With this new TOF-MEIS nano analysis technique, details of nano-structured materials could be measured quantitatively. Progresses in TOF-MEIS analysis in various nano & bio technology will be discussed. For last 10 years, I have been trying to develop multimodal nanobio imaging techniques for cardiovascular and brain tissues. Firstly, in atherosclerotic plaque imaging, using, coherent anti-stokes raman scattering (CARS) and time-of-flight secondary ion mass spectrometry (TOF-SIMS) multimodal analysis showed that increased cholesterol palmitate may contribute to the formation of a necrotic core by increasing cell death. Secondly, surface plasmon resonance imaging ellipsometry (SPRIE) was developed for cell biointerface imaging of cell adhesion, migration, and infiltration dynamics for HUVEC, CASMC, and T cells. Thirdly, we developed an ambient mass spectrometric imaging system for live cells and tissues. Preliminary results on mouse brain hippocampus and hypotahlamus will be presented. In conclusions, multimodal optical and mass spectrometric imaging privides overall structural and morphological information with complementary molecular specific information, which can be a useful methodology for biomedical studies. Future challenges in optical and mass spectrometric imaging for new biomedical applications will be discussed.

• 한국항만경제학회지
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• 제26권1호
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• pp.105-130
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• 2010

광양항은 국내외적으로 부산신항 및 중국 항만들과 물동량 확보와 생산성 향상을 우해 경쟁하고 있다. 광양항 컨테이너터미널은 개장 10년이 지났으나 기술적 변화가 없이 계속 운영되고 있어 경쟁력 확보를 위한 대안의 마련이 시급한 실정이다. 따라서 본 논문은 컨테이너터미널을 대상으로 리모델링 기술대안을 선정하였으며, 선정된 기술대안을 광양항을 대상으로 하여 도입효과 및 우선순위를 분석하기 위해 인과분석을 하였다. 먼저, 리모델링 기술대안은 영역별로 리모델링 목표에 따라 리모델링 효과를 구분하고, 게이트 5개 대안, 야드 8개 대안, 안벽 10개 대안을 선정하고 각 대안별 효과를 구분하였다. 실무전문가를 대상으로 조사한 광양항 컨테이너터미널에 대한 조사결과를 요약하면 광양항의 경우 개선이 필요한 영역의 우선순위가 안벽, 야드, 게이트 순으로 나타났으며, 각 영역별 기술대안의 우선순위를 파악하였다. 리모델링 기술적용 인과분석에서는 리모델링 기술대안을 원인으로 하고, 기술적용에 따른 효과를 결과로 하여 인과분석을 하였다. 각 영역별 대안과 효과와의 관계를 바탕으로 대안의 도입선후관계와 단계별 효과를 분석하였으며, 영역별 리모델링 기술대안의 도입 단계를 분류하여 도입방안을 제시하였다. 본 논문의 한계점으로는 컨테이너터미널별로 장비구성 및 운영방식에 차이가 있기 때문에 일반적인 기술도입 방안이 공통적으로 적용될 수 없다는 것이며, 실제 현장 상황에 맞는 효과적인 기술대안의 선정 방안이 필요하다. 향후에는 컨테이너터미널 운영사별 분석을 통해 보다 생산성 향상에 도움이 되도록 체계적인 방안이 강구되어야 할 것이다.

• 한국패류학회지
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• 제28권3호
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• pp.277-291
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• 2012

Aquaculture is challenged by a number of constraints with future efforts towards sustainable production. Global climate change has a potential damage to the sustainability by changing environmental surroundings unfavorably. The damaging parameters identified are water temperature, sea level, surface physical energy, precipitation, solar radiation, ocean acidification, and so on. Of them, temperature, mostly temperature elevation, occupies significant concern among marine ecologists and aquaculturists. Ocean acidification particularly draws shellfish aquaculturists' attention as it alters the marine chemistry, shifting the equilibrium towards more dissolved CO2 and hydrogen ions ($H^+$) and thus influencing signaling pathways on shell formation, immune system, and other biological processes. Temperature elevation by climate change is of double-sidedness: it can be an opportunistic parameter besides being a generally known damaging parameter in aquaculture. It can provide better environments for faster and longer growth for aquaculture species. It is also somehow advantageous for alleviation of aquaculture expansion pressure in a given location by opening a gate for new species and aquaculture zone expansion northward in the northern hemisphere, otherwise unavailable due to temperature limit. But in the science of climate change, the ways of influence on aquaculture are complex and ambiguous, and hence are still hard to identify and quantify. At the same time considerable parts of our knowledge on climate change effects on aquaculture are from the estimates from data of fisheries and agriculture. The consequences may be different from what they really are, particularly in the temperature region. In reality, bivalves and tunicates hung or caged in the longline system are often exposed to temperatures higher than those they encounter in nature, locally driving the farmed shellfish into an upper tolerable temperature extreme. We review recent climate change and following environment changes which can be factors or potential factors affecting shellfish aquaculture production in the temperate region.

• 복식문화연구
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• 제23권1호
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• pp.45-62
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• 2015

This study is to develop cultural products based on 'Jeju Choga', which means the traditional houses in Jeju. For the product development, old literature review, field surveys, and consumer surveys were employed. Through old literatures and field surveys, the unique and visual characteristics of Jeju Choga were confirmed: A thatched roof with lattice pattern, a side wall and fences with porous stones, a 'Jungnang' serving as a gate, and a 'Pungchai' preventing strong sola radiation and 'Ollai' meaning a narrow street in front of the Choga. As a results of consumer survey conducted before the development of products, consumers highly recognized and associated Jeju Choga as Jeju representative image. The six basic patterns of Jeju Choga were drawn and eight textile designs were created through the repeated arrangements of the basic patterns. Using the created textile designs and digital printing method, the eleven new fabrics with the patterns of Jeju Choga were developed. The various kinds of ten bags and tow wallets made with the new fabrics. As a result of consumer evaluation for the twelve products made in this study, the scores of preference and purchase intention were above the average work for the most products of them. In particular, the preference and purchase intention of the square shoulder bag, the big-size shopper bag, and the small-size cross bag were very positively evaluated. Therefore, it is confirmed that Jeju Choga could be very useful as a motif for the development of cultural products focusing on Jeju tourism souvenir market.