• 복식문화연구
• /
• 제14권5호
• /
• pp.755-765
• /
• 2006

This study is on the esthetic characteristics in the haute couture work of Chanel. It first reviews the lives and the fashion philosophy of Chanel, a senior designer and Lagerfeld as representatives of the maison, from the haute couture collection since 2000. The results of the study are the following. First, reinterpreting the tradition, Chanel reproduced historical dress items or silhouette with modern sense, or she created a new modern Chanel image through her original restructuring and dismantling. Second, Chanel expressed balanced beauty of compounded eclecticism by accord between simplicity and ornamentation, which meant her design showed impartial beauty with simple silhouette, decoration with colors, accessories, and ornaments. Third, Chanel did not divide the value between men and women, and instead expressed androgyny through dismantling each gender's characteristics by borrowing or mixing. As a result, she emphasized the female image or created a new style through expressing symbolic image embracing masculinity.

• 한국안전학회지
• /
• 제37권4호
• /
• pp.51-57
• /
• 2022

In recent years, the government's urban housing expansion policy has resulted in increased construction and remodeling work of residential houses and apartments, causing more industrial accidents at elevator installation sites. Typically, accidents occur during the installation and dismantling of work scaffolds inside the hoistways or using non-standardized work scaffolds due to their structural instability. In view of this, the present study deals with the development of a standardized elevator system scaffolding that can be safely installed outside the hoistway, securing the work platform inside the hoistway. An improved version of the scaffolding system eliminates the need to enter the hoistway for the scaffolding installation, thereby preventing accidents.

• Nuclear Engineering and Technology
• /
• 제50권4호
• /
• pp.613-618
• /
• 2018

We are developing a shared remote control mobile robot for aerial work in nuclear power plants (NPPs); a robot consists of a mobile platform, a telescopic mast, and a dual-arm slave with a working tool. It is used at a high location operating the manual operation mechanism of a fuel changer of a heavy water NPP. The robot system can cut/weld a pipe remotely in the case of an emergency or during the dismantling of the NPP. Owing to the challenging control mission considering limited human operator cognitive capability, some remote tasks require a shared control scheme, which demands systematic software design and integration. Therefore, we designed the architecture of the software systematically.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2012년도 추계 학술논문 발표대회
• /
• pp.5-7
• /
• 2012

Repeated using carpentry workers work at working tools because of occupational low back pain, such as musculoskeletal disorders, occupational diseases are on the rise. For this purpose, through the analysis of musculoskeletal disorders and work tools and studies are underway to improve the working conditions of the workers. However, existing previous studies may not reflect the working tools used for carpentry worker dies when working at a construction site that Therefore, in this study, the work in the form of construction, one of the jobs of worker dies classified according to the working tools of musculoskeletal disorders correlated to analyze. The results of this study are as follows. working tools of a total of seven different dies used in the installation process. Musculoskeletal disorders, waist / drill such correlation was very strong. Also showed that a total of three of the tools used in the formwork dismantling cutter musculoskeletal disorders of the arm / elbow and a very strong correlation.

• 드라이브 ㆍ 컨트롤
• /
• 제17권4호
• /
• pp.103-112
• /
• 2020

Field robots are used in various fields, such as agriculture, forestry, manufacturing, and construction; their use has recently expanded to include submarine areas. Field robots can aid in various tasks, such as soil transport, ground clearance, and dismantling of buildings. As field robots are used in a variety of different areas, the difficulty of the work is also quite varied. Increased difficulty is associated with an increased risk of accidents involving the field robot. In order to reduce the accident rate of field robot workers, the need for digitalization and automation of field robots is becoming more of an issue. To this end, it is necessary to study a system that enables workers to do their work without directly contacting a field robot. Therefore, in this paper, we introduce a control system for wireless remote control of a small field robot. The field robot can be wirelessly controlled by a worker in a remote location if the worker cannot be present at the work site. The implemented remote system is tested according to the type of work, and the operating characteristics of the remote system are assessed.

• Journal of Radiation Protection and Research
• /
• 제48권1호
• /
• pp.20-27
• /
• 2023

Background: As the number of nuclear facilities nearing their pre-determined design life increases, demand is increasing for technology and infrastructure related to the decommissioning and decontamination (D&D) process. It is necessary to consider the nature of the dismantling environment constantly changing and the worker doing new tasks. A method was studied that can calculate the effect of learning and the change in work time on the work process, according to the learning-forgetting curve model (LFCM). Materials and Methods: The LFCM was analyzed, and input values and scenarios were analyzed for substitution into the D&D process of a nuclear facility. Results and Discussion: The effectiveness and efficiency of the training were analyzed. It was calculated that skilled workers can receive a 16.9% less collective radiation dose than workers with only basic training. Conclusion: Using these research methods and models, it was possible to calculate the change in the efficiency of workers performing new tasks in the D&D process and the corresponding reduction in the work time and collective dose.

• 한국정밀공학회지
• /
• 제28권1호
• /
• pp.48-55
• /
• 2011

Hydraulic excavator is one of the most widely used heavy machines in construction sites including dismantling. In the dismantling sites, the excavators equipped with crusher or breaker carry out dangerous operations, so drivers are always exposed to unexpected danger. For safety operation, remote control of the hydraulic excavator has been studied using proportional control valve, which requires an appropriate motion control of its bucket tip. In this case, kinematics and dynamics analysis have to be preceded through modeling of excavator. However, it is difficult to acquire reasonable results from the analysis due to insufficient information of physical parameters such as mass of each links and locations of mass centers, etc. This study deals with the trajectory control of bucket tip, which is based on experimental estimation of cylinder output force. The estimated forces are fed into the control of each cylinder in order to compensate gravitational and frictional effects in the cylinders. The control was applied to horizontal trajectories that are for flattening work.

• 한국건설순환자원학회논문집
• /
• 제12권2호
• /
• pp.222-228
• /
• 2024

이 연구에서는 건축물 분별해체 제도 도입에 따른 사회적 편익을 분석하고자 하였다. 이를 위하여 연면적 2,400 m²의 공동주택을 대상으로 산출된 분별해체 수익 및 비용을 토대로 국가전체의 증분수익, 증분비용, 증분이익을 도출하였다. 2,400 m²를 대상으로 분별해체 공사를 실시할 경우, 해체공사 시공비용의 증가액, 혼합폐기물의 감소로 인한 발생 폐기물 처리 비용 저감액, 분리·선별한 폐기물을 활용한 재활용으로부터 얻을 수 있는 수익을 종합적으로 검토하였을 때, 일반 해체공사와 비교하여 총 34,727천원의 비용 절감 효과가 예상됨을 확인할 수 있었다. 이를 건설폐기물 발생량이 가장 많았던 2020년을 기준으로 국가 전체적으로 환산한다면 746,782,886천원의 사회적 편익이 발생함을 추정할 수 있었다.

• 한국방사성폐기물학회:학술대회논문집
• /
• 한국방사성폐기물학회 2004년도 학술논문집
• /
• pp.85-96
• /
• 2004

연구로 및 원자력 시설 해체작업 수행 시 고려해야 할 여러 가지 비용인자를 고찰하기 위하여 OECD 국가 및 원자력 선진국의 연구용 원자로 및 원자력 시설 해체비용에 대한 추정 결과의 영향 인자를 중심으로 분석하였다. 여러 가지 해체 비용을 유발하는 범주에서 원자력 시설 철거활동과 폐기물 처리 활동이 가장 많은 비용이 발생하는 것으로 예상되고 있고, 노동인력비용, 재료비 기타 비용 중에서 노동 인력 투입에 대한 비용이 가장 많이 차지한 것으로 나타났다. 해체비용에 영향을 미치는 주요 변수로는 Work difficulty, Regional labor cost 차이, Peripheral cost, Disposal/final burial costs으로 조사되었다.

• Nuclear Engineering and Technology
• /
• 제49권4호
• /
• pp.865-872
• /
• 2017

For more than 10 years, the laser process has been studied for dismantling work; however, relatively few research works have addressed the effect of high-power fiber laser cutting for thick sections. Since in the nuclear sector, a significant quantity of thick material is required to be cut, this study aims to improve the reliability of laser cutting for such work and indicates guidelines to optimize the cutting procedure, in particular, nozzle combinations (standoff distance and focus position), to minimize waste material. The results obtained show the performance levels that can be reached with 10 kW fiber lasers, using which it is possible to obtain narrower kerfs than those found in published results obtained with other lasers. Nonetheless, fiber lasers appear to show the same effects as those of $CO_2$ and ND:YAG lasers. Thus, the main factor that affects the kerf width is the focal position, which means that minimum laser spot diameters are advised for smaller kerf widths.