• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2022.04a
• /
• pp.87-88
• /
• 2022

For an earthquake-safe urban environment, the Republic of Korea conducts seismic performance evaluation in accordance with laws and guidelines to assign safety ratings and implement necessary management measures such as repairs and reinforcements. In the seismic performance evaluation result, structures lacking in preparation for earthquakes are prioritized and classified into measures such as repair, reinforcement, or careful observation to respond to physical risks such as earthquakes. Such repair and reinforcement work is not a one-time thing, but it is necessary to further enhance the effect through continuous follow-up observation. In this study, the location of the vertical and horizontal displacement measuring part of the construction part is displayed so that the post-construction status of the reinforcement construction part can be visually checked by identifying the problems in the process of post-monitoring in 2022 for the maintenance and reinforcement work of local governments' public facilities carried out in 2021. We propose a plan to institutionalize the installation of, inspection tools, and crack gauges at certain locations in the construction department, and to have facility managers periodically inspect and manage them with a smartphone program or the 'Facility Autonomous Safety Inspection' app.

• Journal of the Korean Electrochemical Society
• /
• v.27 no.2
• /
• pp.55-72
• /
• 2024

Secondary batteries are used as an essential renewable energy source in our lives, such as electric vehicles and energy storage systems (ESS), as an alternative to fossil fuels due to global warming. However, cases of battery fires and explosions have been reported due to thermal runaway in secondary batteries due to various causes such as overdischarge, high-speed charging and discharging, and external short circuit, and great efforts are being made to find solutions suitable for each cause. In particular, as cases presumed to be caused by the overcharging process have been reported, this review will examine the chemical reactions of secondary batteries that can occur during the overcharging process and discuss risk investigation methods to check and prevent them.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.25 no.9
• /
• pp.1206-1213
• /
• 2021

A drone invented for the military has been increased the range of application with the development of relevant technology, and it influences to include the private area. Currently, the use of drone has been increasing in many areas, such as agriculture, unmanned parcel service, production of image contents, and architecture. In 2021, South of Korea, a drone certificate system for drone flight is introduced and on operation. In case of drone flight with the maximum takeoff weight as 2kg or up, the flight experience and practical examination are required, whereas in case of drone lighter than 2kg, the online education qualification is enough to operate it without the flight experience and practical examination. Recently, the drone related accidents have been increasing with the rapidly supply of camera drones with the maximum takeoff weight as less than 2kg. This paper introduces the characteristics of the camera drone to meet burgeoning demand, and discusses an education plan for the camera drone.

• Journal of Korean Association for Spatial Structures
• /
• v.22 no.3
• /
• pp.15-24
• /
• 2022

In this research, the case of modern wooden structures since 1950 with span of 30m or more was investigated and analyzed the construction status and structural planning characteristics of wooden large space architecture. As a result, wooden large space buildings have built around Asia, North America, and Europe, in which cases of ice skating stadiums with span of 30m to 60m were concentrated. In the case of baseball parks and football stadiums, even a span of about 165m was built in a wooden structure. In addition, it was found that the structural systems used in wooden large space structures were a funicular arch and truss structure, in that cases, funicular arch system consisting of radial arrangements was used in the examples exceeded 150m and the two way truss system was also used in long span wooden structures exceeding 100m. As the truss structure with a tie-rod or the flexure+tension structure was partially investigated, it can be seen that various timber structural systems need to be devised and researched. Also, It was investigated that a technique in which some members of the truss are made of steel or a composite member of steel and timber is also possible to develop

• Journal of the Korea Institute of Building Construction
• /
• v.24 no.1
• /
• pp.87-95
• /
• 2024

This research explores the utilization of Unmanned Aircraft Systems(UAS), or drones, within the construction industry, aiming to assess their current use and forecast their potential impacts. The study endeavors to present a comprehensive overview of approaches to overcome existing barriers to drone implementation. Through the analysis of survey responses and focus group discussions with 21 industry experts, the study reveals a significant recognition among participants of the need for drone adoption and the potential for technological advancement, despite the current limited deployment on construction sites. Participants predict that drones will substantially enhance construction safety and efficiency. The study identifies three primary obstacles to drone integration: 1) the expense associated with setting up a UAS monitoring framework; 2) challenges related to data exchange and management; 3) the necessity for professional training in drone operation. This research contributes valuable insights into the present usage of drones at construction sites, elucidating the anticipated advantages, current impediments, and prospective solutions for drone utilization.

• The Journal of the Convergence on Culture Technology
• /
• v.10 no.3
• /
• pp.901-907
• /
• 2024

The desire to be beautiful naturally focuses on aesthetics, and the beauty industry is growing significantly accordingly. Among them, art makeup is developing in the beauty field as a creative and experimental art field that breaks away from the fixed framework centered on color and expression. Art makeup is a field that requires research on a new artistic form of art makeup that applies formative principles through design ideas based on integrated arts such as fashion, architecture, and art according to formative principles. Formative principles were classified into balance, unity, emphasis, and rhythm, and practical cases based on his applied integrated arts were divided into landscaping, architecture, flowers, painting, fashion, and interior design, and art makeup design using formative principles was analyzed. Accordingly, we aim to contribute to the development of new designs by explaining how makeup design forms that apply formative principles are being applied in the field of art makeup, exploring expansion into creative areas, and providing academic theoretical foundations and basic materials for the development of art makeup.

• 월간 기계설비
• /
• s.237
• /
• pp.80-84
• /
• 2010

국내의 기계 및 설비관련 학과는 모든 산업의 기초가 되는 기계를 다루는 기술인이 반드시 알아야 할 기계관련 이론과 다양한 실기를 통해 산업현장에 필요한 전문직업인 양성에 교육 목표를 두고 있다. 또한 오늘날 첨단 기계 산업의 발달 및 다양화에 따라 생산 및 생산시설 관리, 제품 설계 및 제작, 엔지니어링 마케팅, 컴퓨터 하드웨어 및 소프트웨어 관련 업무를 충실히 담당할 중견 전문가 양성도 담당하고 있다. 본지는 지난해 3월호부터 이번호까지 총 14회에 걸쳐 전국의 기계 및 설비관련 학과를 소개했다. 건축물이 첨단화 다양화 되면서 기계설비의 비중이 점차 커짐에 따라 각 대학들은 다양한 커리큘럼을 마련해 전문성 향상은 물론, 개별 경쟁력 확보를 위해 자격증 및 어학 등을 강화함으로써 21세기가 요구하는 미래의 기계설비인 양성을 위해 노력하고 있음을 엿볼 수 있었다. 본지는 이번호를 끝으로 기계설비 관련 대학 탐방을 마친다. 그동안 취재 및 원고 작성에 협조해주신 대학 관계자 여러분께 감사드린다.

• Korean Institute of Interior Design Journal
• /
• v.14 no.3 s.50
• /
• pp.173-180
• /
• 2005

The program of practical training of architectural interior will be change for improvement of not only to complete design on the table but to be in employee market flexibly also. It's necessary to take the educational efficiency for the practical training in the course of intoner architecture. The characteristic of interior space in the model for useful practice is residential space. the interior construction to be controled generally on the central axis of interior architecture, although there were several items of construction which divided architectural structure, electrical power, air control est. the process of practical training is to be established not only with object of training, grade of skill, materials and equipments and tools of it's prepare and working, but safety on the job training.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2016.05a
• /
• pp.305-308
• /
• 2016

The 3D printing technology which is called new revolution of 21C is under the spotlight recently. The technology takes effects on general manufacturing industries, as well as the prototypes, education, health care, construction. and other industries. It seems that personalized products will be produced and distributed with the introduction of 3D printers. In the case the possibility of violating intellectual property rights, we propose a system that can prevent the violation.

• Journal of Korean Association for Spatial Structures
• /
• v.24 no.1
• /
• pp.65-72
• /
• 2024

This paper aims to advance our understanding of extensible beams with multiple cracks by presenting a crack energy and motion equation, and mathematically justifying the energy functions of axial and bending deformations caused by cracks. Utilizing an extended form of Hamilton's principle, we derive a normalized governing equation for the motion of the extensible beam, taking into account crack energy. To achieve a closed-form solution of the beam equation, we employ a simple approach that incorporates the crack's patching condition into the eigenvalue problem associated with the linear part of the governing equation. This methodology not only yields a valuable eigenmode function but also significantly enhances our understanding of the dynamics of cracked extensible beams. Furthermore, we derive a governing equation that is an ordinary differential equation concerning time, based on orthogonal eigenmodes. This research lays the foundation for further studies, including experimental validations, applications, and the study of damage estimation and detection in the presence of cracks.