• Nuclear Engineering and Technology
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• 제55권7호
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• pp.2356-2365
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• 2023

Characterization, dismantling and pre-disposal management of irradiated graphite (i-graphite) have an important role in safe decommissioning of several nuclear facilities which used this material as moderator and reflector. In addition to common radiation protection issues, easily volatizing long-lived radionuclides and stored Wigner energy could be released during imprudent retrieval and processing of i-graphite. With this regard, among all cutting technologies, abrasive waterjet (AWJ) can successfully achieve all of the thermo-mechanical and radiation protection objectives. In this work, factorial experiments were designed and systematically conducted to characterize the AWJ processing parameters and the machining capability. Moreover, the limitation of dust production and secondary waste generation has been addressed since they are important aspects for radiation protection and radioactive waste management. The promising results obtained on non-irradiated nuclear graphite blocks demonstrate the applicability of AWJ as a valid technology for optimizing the retrieval, storage, and disposal of such radioactive waste. These activities would benefit from the points of view of safety, management, and costs.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.708-709
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• 2015

In Korea, a series of noise-reduced aluminum forms are being recently used in apartment housing construction. However, their complicated and time-consuming work processes, and the noise which is still generated due to the inherent property of aluminum when especially installing and dismantling them are have been pointed out as a problem to be certainly solved for increasing their practical use in construction sites. The primary objectives of this study are to propose a conceptual design of a newly designed noise-reduced aluminum form in which the noise can be enormously decreased during form works. The conceptual design in this study improved problems of conventional system aluminum forms, and, later, a system aluminum form developed based on this conceptual design will be able to ensure noise-reduction and safety as well as excellent applicability.

• 한국구조물진단유지관리공학회 논문집
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• 제22권3호
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• pp.38-45
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• 2018

건설해체공사와 유사한 특성을 갖는 원전 제염해체공사에서 구조적 리스크 관리는 매우 중요하다(DOE). 하지만 제염해체작업 중 발생할 수 있는 구조적 재난재해 및 위험요소는 크게 고려하지 않고 있다. 이로 인해, 구조적 재난 및 재해에 의해 발생할 수 있는 작업자 리스크 역시 체계적으로 정립되어 있지 않다. 또한, 재난 및 재해 그리고 리스크 분류체계는 작업의 특성(작업프로세스, 활용장비, 작업 위치 등)별로 분류되어 있지 않아 실제 해체공사를 위한 매뉴얼로 활용하기에 무리가 있다. 따라서 차폐 콘크리트 구조물 제염해체공사의 건설해체공사와의 유사성을 기반으로 작업의 특성별로 분류한 리스크를 도출하는 것은 원자력 발전소 해체공사 리스크 관리에 필수적으로 판단한다.

• International Journal of Costume and Fashion
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• 제5권1호
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• pp.14-25
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• 2005

The objective of this study is to understand bodily extension and identity in contemporary fashion art through the analysis of 'the fashion acting on the body' among the fashion theory excluding body and the conspicuous works on the opening and covering images as a fashion art as a body-space'. This study also investigated identity problems where there are poles apart in opening and closure their bodies and body-space in which its clothing types were distorted by being de-bodilization out of the traditional and ideological expression method in contemporary fashion art from a opening and closure point of view. Image of opening and closure among body-space in fashion art can be classified into opposing structure of opening and closure. Destroying the boundary between bodily opening and closure for a primary function of clothing and dismantling the role and boundary between body and clothing, opening body-space in appearance as a reemergence of body image or the border between inner and outer are being ambiguous because of transparent material. Being representative work of this study opening body-space was expressed as an opening space image using transparency. On the contrary, closure body-space was isolated from external environment and confined in the certain space, which could limit or restraint body- action. Excluding boundary of body and clothing on the whole or in part, boundary of work becomes body-space. However, these were appeared to be a work inducing unlimited curiosity and meaning from the audience. The interpretation of artistic and body-space in fashion art are indicating the role and function of the fashion art exceeding the suggestible dimensions in the every day life of fashion. The body-space of fashion art showing similar aspect of body art today could be understood that it is substituted into an metaphorical, critical space by seeing it as a symbol system connected with social space. Therefore, contemporary fashion art should be interpreted as an equivocal space looking at the body-space with open mind.

• 한국실내디자인학회논문집
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• 제27권1호
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• pp.97-108
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• 2018

This study is based on the way Kim Kwang Soo works, which reveals a strong expressive tone that is rare in Korean architecture. His work is not decorative and symbolic representation of the intention of positive amusement. Therefore, the following noteworthy points will arise. The various phenomena associated with architecture and society are researched and analyzed in a critical manner. So, it creates and expresses its own formal logic. In this study, the theory of the subversive appropriation theory was identified by using the expressive characteristics of engagement. The study was based on a conceptual framework for the overturning of the mimesis, which Benjamin and Adorno have described. From this, this study summarizes Kim Kwang Soo's nihilistic attitude, finding boundaries and crack points, and subversive expression as a new form of architectural formal logic as main characteristics of interpretation of works. The characteristics of subversive expression of Kim Kwang Soo architecture derived from this are as follows. It does not take an ideological approach to the dismantling of the internalization of traditional Korean architecture. Popular culture and social phenomena are used as materials for expression. These are structured sensibly with appropriated formal logic. Finally, the architectural position adhered to the limit of performativity was recognized as the dimension of new meaning generation.

• Safety and Health at Work
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• 제10권4호
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• pp.409-419
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• 2019

Although the rare earth elements (REEs) recycling industry is expected to increase worldwide in hightech industry, regulations for worker safety have yet to be established. This study was conducted to understand the potential hazard/risk of REE recycling and to support the establishment of regulations or standards. We review the extensive literature on the toxicology, occupational safety, and health issues, and epidemiological surveys related to the REEs, and propose suitable management measures. REE recycling has four key steps such as collection, dismantling, separation, and processing. In these processes, hazardous substances, such as REEs-containing dust, metals, and chemicals, were used or occurred, including the risk of ignition and explosion, and the workers can be easily exposed to them. In addition, skin irritation and toxicities for respiratory, nervous, and cardiovascular systems with the liver toxicity were reported; however, more supplementary data are needed, owing to incompleteness. Therefore, monitoring systems concerning health, environmental impacts, and safety need to be established, based on additional research studies. It is also necessary to develop innovative and environment-friendly recycling technologies, analytical methods, and biomarkers with government support. Through these efforts, the occupational safety and health status will be improved, along with the establishment of advanced REE recycling industry.

• Design & Manufacturing
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• 제15권1호
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• pp.8-13
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• 2021

Excavators are construction machines used for digging soil, transporting soil, dismantling buildings and clearing the ground at construction sites. There are various attachments attached to the arm end of the excavator and used for various operations. There are the most common types of buckets attached for excavation and other types of attachments used for foresting, road cleaning, snow removal, and waste disposal. When multiple types of work are done at the same time, several attachments must be replaced and a device called a quick coupler is used to reduce replacement time. Although a quick coupler reduces the replacement time of the Attachment, it is necessary to attach safety devices to prevent unintentional detachment of attached attachments during the operation. To prevent the attachment from leaving or falling regardless of the operator's intention, support is installed in the hook of the bucket pin and controlled through a separate hydraulic cylinder to ensure safety. When attaching an attachment, it shall be attached without any action. This study is intended to verify the design validity of safety devices to prevent falls of attachments occurring at construction sites.

• 한국콘텐츠학회논문지
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• 제22권8호
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• pp.227-234
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• 2022

본 연구는 초현실주의 예술의 특성을 파악하고 그 영향을 받은 안무가 윌리엄 포사이드의 대표작을 토대로 안무방법을 고찰하였다. 포사이드는 초현실주의 특성과 자신의 방법을 통해 획기적인 공연예술로 발전시켰으며, 이러한 독창적인 안무적 접근방식을 기초로 새로운 신체 이미지를 모색하고자 하였다. 이를 통하여 초현실주의 예술 특성인 형식의 파괴와 해체는 포사이드의 안무방법에서 분리된 움직임, 공간의 재구성, 특수한 오브제로 나타나는 것을 발견할 수 있었다. 따라서 본고에서는 초현실주의 특성 및 형식에 관하여 알아보고 윌리엄 포사이드 작품에서 나타나는 초현실주의적 요소를 규명하는 것을 목적으로 삼는다.

• 만화애니메이션 연구
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• 통권44호
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• pp.235-261
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• 2016

인터넷 및 디지털 미디어의 환경에서 미디어 수용자는 동일 콘텐츠를 다양한 플랫폼으로 이용하고 있다. 이처럼 여러 장르의 콘텐츠가 디지털 미디어의 기반에서 융합, 조합, 변형, 분화, 복제 등의 과정을 거치면서 새로운 콘텐츠의 형태로 전환되는 것을 트랜스미디어라고 한다. 트랜스미디어 시대에서 성공하는 콘텐츠를 만들기 위해서는 에디큐레이션의 작업이 필요하다. 에디큐레이션은 큐레이터의 큐레이션 작업에 편집과 의미를 부가하는 작업 행위이다. 그런 점에서 이 논문은 트랜스미디어 시대에서 출판 및 만화 콘텐츠의 에디큐레이션에 대한 정의와 의미를 분석했다. 에디큐레이션은 디지털 미디어 환경에서 콘텐츠의 생산자가 곧 소비자며, 소비자가 곧 생산자인 프로컨슈머/프로듀저를 유도하는 역할을 담당하는 프로세스다. 디지털 플랫폼과 디바이스의 다양화, 디지털 1인(혹은 SNS) 미디어의 등장 등은 출판 및 만화 콘텐츠에도 다양한 방식의 에디큐레이션을 요구한다. 미디어 생산자(혹은 수용자)의 의도에 따라 콘텐츠는 복제, 짜깁기, 분해, 해체, 하이퍼텍스트, 압축, 재구성 등의 과정을 거쳐서 새로운 콘텐츠로 탄생한다. 이처럼 에디큐레이션의 작업을 거친 출판 및 만화 콘텐츠는 미디어 생산자의 작업 방식은 물론, 미디어 수용자의 콘텐츠 독법에도 영향을 미친다는 점에서, 트랜스미디어 시대의 에디큐레이션은 중요한 의미를 지닌다. 출판 콘텐츠에서 에디큐레이션 작업은 챕터나 단락의 논리성 파괴, 구어체의 문장, 카드 뉴스의 활용, 동영상 및 미디어 콘텐츠의 변형 등이 있으며, 만화 콘텐츠에서는 칸의 파괴, 말풍선, 의성어, 의태어의 다양한 변형 등을 들 수 있다.

• 한국안전학회지
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• 제35권4호
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• pp.23-31
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• 2020

In the construction sector, there were 99 fatalities from falls associated with steel tube and system scaffolds for three years from 2016 to 2018 and out of which 27.3 percent (27 workers) were found to have occurred during installing and dismantling procedure. To erect scaffolding which is installed for the work at height, the work platforms are generally installed first and the safety guardrails are installed and vice versa to dismantle. As a result, workers are exposed to the risk of falling because they erect and dismantle scaffolding without guardrails. To minimize the risk of falling, it is necessary to study a new construction method that can erect or dismantle scaffolding while guardrails are installed (called advanced guardrail system). This study analyzed advanced guardrail system in terms of safety regulation, workability and economic efficiency by investigating the domestic situation on the use of scaffolding, reviewing domestic and foreign standards for guardrails and conducting economic feasibility study. The results of this study is expected to greatly contribute to preventing falls in scaffolding installation and dismantlement procedure. As a follow-up study, empirical research is required including physical test of scaffolding with advanced guardrail system and effectiveness analysis after trial applications.