• Journal of Practical Engineering Education
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• v.16 no.2
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• pp.179-184
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• 2024

Printed circuit boards (PCBs) are a key component widely used in the production of electronic products, and not only quantitative growth but also qualitative developments such as integration cannot be ignored. Wave soldering equipment is commonly used equipment at manufacturing sites, but it is impossible to configure a dedicated equipment environment suitable for each PCB specification during the preliminary research and prototype development stage. It is neither suitable for development within limited time line nor manufacturing various product groups because only equipment setting conditions can be changed within a given time. In this study, we introduce a case of introducing a PCB pallet to enable selection of optimal process conditions within the limited environment described above. In addition, by presenting a discriminant that can determine in advance whether production is possible with current general-purpose equipment, it is expected that problems that may arise due to limitations in the general-purpose wave soldering equipment environment can be identified and resolved in advance. Ultimately, this palette makes it possible to shorten the development period and improve productivity.

• Journal of Practical Engineering Education
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• v.6 no.1
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• pp.37-42
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• 2014

The automated visual inspection system (machine vision system) for quality assurance is important factory automation equipment in the manufacturing industries, such as display, semiconductor, etc. There is a lot of demand for the machine vision engineers. However, there are no technical training courses for machine vision technologies in vocational schools, colleges and universities. In this paper, we present the implementation of line scan camera based equipment for technical training of the automated visual inspection system. The training system consists of the X-Y stage which is widely used in machine vision industries and its variable image resolution are set to $10-30{\mu}m$. Additionally, this training system can attach the industrial illumination, either the direct illuminator or coaxial illuminator, for verifying the effect of illuminations. This means that the trainee can have a practical training in various equipment conditions and the training system is similar to the automated visual inspection system in industries.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.10a
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• pp.127-129
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• 2015

극지해역 운항선박은 주 추진시스템 및 선박 장비들이 일반 상선과 다른 경우가 많다. 따라서 극지운항 선박의 기관사들은 각종 장비 및 시스템에 친숙해져야 할 필요가 있다. 이 연구에서는 교육 및 훈련을 통해 극지 운항 선박에 승선하는 기관사관의 자질 향상을 통해 극지운항 선박의 안전운항을 도모하는데 있다. 또한, 그러한 자질 향상을 위해 필요한 Ice Engineer 교육 프로그램 방안을 모색하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2005.10a
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• pp.89-92
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• 2005

This paper describes a system for LNG carrier's loading and discharging work education This system consists of three modules(cargo work simulation, ballast work simulation and loading calculation module), and could be a useful to train mariners boarding on LNG carrier so as to take a suitable action while their ship maneuvering and cargo handling.

• Transactions of the KSME C: Technology and Education
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• v.4 no.1
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• pp.63-71
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• 2016

Although mechatronics education in a mechanical engineering curriculum is recently recognized as important, its experimental education has been done generally in the laboratory equipped with all the apparatus and could not be done at home by students. This paper introduces experimental educations on mechatronics, e.g., digital logic circuits, 7-segment LED drive, square wave generation, microcontroller programming using assembly and C languages, timer interrupt, and step motor drive using a small 5 V power supply, a breadboard, various electronic and electric components, a microcontroller and its programmer, a step motor, and a student's PC. In the developed mechatronics course, experimental educations are scheduled in parallel with content's lectures together, and cheap and economic experimental environment is prepared for students in which students can easily practice experimental works in advance or later at home by themselves.

• Journal of the Korean Society of Radiology
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• v.17 no.3
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• pp.459-464
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• 2023

Due to the development of advanced technology, a lot of digital radiographic equipment has been developed, which is very helpful for accurate diagnosis and treatment, and it is very important to train personnel who have acquired professional knowledge in order to use it safely and effectively. Students are exposed to the risk of radiation exposure in radiography training using diagnostic X-ray equipment, and some educational institutions do not use X-ray equipment due to management difficulties in accordance with the Nuclear Safety Act. As a solution to this, this study developed a medical radiation simulator for education that does not generate radiation by using a vision sensor and self-developed software. Through this, educational institutions can reduce the burden of administrative implementation according to the law, and students can obtain a high level of educational effects in a healthy practice environment without radiation exposure.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.7
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• pp.819-827
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• 2023

If respiratory arrest occurs or cardiopulmonary resuscitation (CPR) is performed for a long period on board ships, CPR with rescue breathing (not compression-only CPR) is required. Accordingly, ships must have resuscitation equipment for oxygen supply, and seafarers must have the maritime competence to use it. This study aimed to analyze the placement status of resuscitation equipment on ships and seafarers' intention to use them in order to increase the usability of resuscitation equipment on board ships and propose improvement measures. The study was conducted from February 2, 2023, to April 21, 2023, and a total of 340 seafarers were surveyed. The data were analyzed by frequency, percentage, and chi-square test using SPSS WIN 23.0. The results showed that the checking of resuscitation equipment was high among seafarers in the positions of officer, captain, deck department personnel, and ocean-going personnel. The intention of seafarers to use resuscitation equipment was low, and the main barrier was the lack of knowledge on how to use. Among the general characteristics of the study participants, those whose rank was that of officer or captain, whose working department was the deck, voyage who were ocean-going, and who managed a gross tonnage of 20,000 tons or more had a high intention to use resuscitation equipment. Participants who knew the necessity of rescue breathing and had received practice and equipment-based training were active in using resuscitation equipment. Therefore, a system should be developed so that all ships can be equipped with resuscitation equipment, and an environment must be created to increase accessibility to resuscitation equipment on board ships. In addition, an education system based on practical and resuscitation equipment training must be established to ensure that seafarers have maritime competence.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.398-399
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• 2022

민방위대 창설 이후 50여 년 동안 민방위 전반적인 분야에 많은 변화가 있었다. 민방위 분야의 주요 업무는 전시상황 및 대규모 재난상황 대비업무로 비상사태 시 국민을 보호하고, 전시 지원 업무를 수행하는 포괄적 안보 개념으로 확대된다. 그러나 1975년 민방위대 창설 50여 년간 누적된 민방위 임무 역할 변화와 복합화로 민방위 장비 운용의 효율성이 상실되고 민방위 역량을 초과하는 법적 임무 설정 등으로 현재 운영 장비의 실효성에 논란이 일고 있다. 복잡하고 다종다양한 민방위 장비 체제로는 전·평시 실제적 재난현장에서 통합 역량을 발휘하기에 제한이 있고 민방위대별 민방위 장비 보급기준이 상이하고 보급기준에 따른 임무 수행 가능 범위도 모호하여 실질적인 효과를 발휘하기도 어려운 실정이다. 본 연구는 최적·최소 임무를 기반으로 한 민방위대 편성, 교육과 장비 운용 체제를 통합 일치시킨 새로운 민방위 장비 운용체계 정립의 기초연구로써 민방위대 필수장비 선정을 위하여 재난유형별 임무를 분석하고 장비를 조사하였다.

• Water for future
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• v.56 no.9
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• pp.47-51
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• 2023

2023년 1학기(2023년 3월 2일~2023년 6월 20일) 동안 한국농어촌공사 농어촌연구원 국제융합수리시험센터(안산)에서 현장실습을 한것을 바탕으로 후기를 작성하였다. 현재 농어촌연구원은 농어촌 지역개발, 수자원의 효율적 이용과 관리, 농업 신기술 교육, 스마트팜 기술 보급, 친환경 농업, 남북협력 사업 등 농어업인의 환경 개선과 올바른 정책 방향성을 제시하기 위하여 다양한 분야의 연구를 수행하는 공공기관이다. 이번 현장실습을 경험한 국제융합수리시험센터는 1959년에 국내 최초로 수리모형실험을 시작하였으며, 2018년 대형 실험시설이 추가 증축되어 규모나 시설(장비) 측면에서 국내는 물론 세계 최상위 수준의 인프라를 보유하고 있다. 또한 댐, 하천, 해양, 신재생에너지 등과 관련하여 다수의 실험 실적 보유하고 있어 수 공학 분야의 국가경쟁력 강화에 견인하고 있다. 이번 현장실습은 수리실험 이론 교육, 실험장비 교육, 실험실습, 안전교육으로 구성되어 있다. 교육프로그램(HIGH Center ACE⁺)에 따른 학교에서 배운 전공 이론을 수리실험 분야에 어떻게 적용할 수 있는지 직접 실습하면서 배울 수 있었다. 4개월간 현장실습 교육프로그램에 참여하면서 수리실험 등 수공학 분야의 다양한 경험을 할 수 있었고, 이는 향후 전공과 관련된 직장을 준비하는 데 많은 도움이 될 것으로 생각된다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.663-664
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• 2022

본 연구에서는 펜싱의 저변확대를 위하여 펜싱 강습을 위한 모바일 애플리케이션을 설계하고 개발하였다. 펜싱의 저변확대가 어려운 이유로 펜싱 장비가 고가이고 시설을 갖추기 어렵다는 것에 있다. 이에 많은 펜싱 연구자들이 저변 확대를 위하여 뉴스포츠화한 펜싱 종목을 고안하거나, 금속제 장비가 아닌 플라스틱 훈련장비도 개발하는 등 많은 노력을 기울이고 있다. 이에 본 연구에서는 기본적인 펜싱 강습이 가능한 모바일 애플리케이션을 구현하였다. 모바일 애플리케이션에서는 시간 관리 기능, 점수 관리 기능 등을 갖추도록 하였다.