• Journal of Advanced Research in Ocean Engineering
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• 제2권3호
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• pp.112-128
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• 2016

Capsize and sinking of a coastal car ferry has occurred in a Korean offshore area and has caused hundreds of human casualties. The rapid turn and improper cargo loading are inferred as the main reasons of the accident. It has motivated to develop a new system of cargo securing with improved safety of Korean coastal ferries. This paper provides a new approach regarding cargo securing safety assessment which is purely based on force equilibrium conditions, because IMO CSS is suitable for the ocean-going vessels. The mathematical formulations are presented for the new approach. This paper also introduces a newly developed safety assessment system based on the new approach. Most outstanding features are that it can utilize acceleration data produced from hydrodynamic motion analyses or assumed maximum extents of ship motion components and that securing safety assessment is simultaneously possible for unlimited number of cargoes with finite number of lashings.

• KIEAE Journal
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• 제7권5호
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• pp.73-80
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• 2007

Indoor climate control equipments is used to make the indoor environment more comfortable when indoor condition is not satisfactory to inhabitants. In this study, which instrument is preferred to control indoor climate and which is not preferred were surveyed with questionnaire. With this result, the needs of dwellers and wanting performance of housing could be revealed. Results are followings 1) The satisfaction ratio and equipment possession ratio of apartment houses' is higher than that of detached dwelling's 2) It is recognized for inhabitants that air cleaner is the mostly used equipment and best equipment for indoor comfort. 3) Electronic fomentation mat is recognized as the most problematic equipment for securing inhabitant's comfort. And air conditioner is considered negative for 60% of responser's. As grow older, this trend is increasing.

• 한국산업융합학회 논문집
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• 제13권4호
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• pp.205-209
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• 2010

Even the domestically small-and medium-sized companies progressed development in the monitoring equipment of inspecting run out in steel wheel aiming to supply and generalize through developing the monitoring equipment for securing quality technology and enhancing quality-test level. Run-Out value in vehicle wheel was measured with Computer & Servo system by using Low-Point marking machine control system, which is this development product. Low-Point value was operated and calculated. It marked by revolving wheel as much as the demanded measurement value based on 1ST harmony curve. Thus, the shipment of inferior product, which occurs in the measurement by the existing worker, could be blocked in advance. In the existing case, 60 sec. was required for inspecting 1 product. However, it came to bring about a rise in production volume through shortening inspection time to 8 seconds and improving workers' operating environment.

• 전자통신동향분석
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• 제36권4호
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• pp.110-117
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• 2021

The development of core technologies in the 4th Industrial Revolution, such as artificial intelligence, big data, and the intelligent Internet of Things, promote digital transformation and intelligence of the manufacturing industry. To realize them, there is an increasing demand for materials, components, and equipment needed for final goods. In particular, the expansion of global value chain instability due to changes in the external environment, such as the U.S.-China trade dispute, Japan's export regulations, and Covid-19 pandemic, increases the importance of strengthening the materials, components, and equipment industry in the global market. Thus, this study presents a strategic direction for securing global industrial competitiveness of materials, components, and equipment using Michael Porter's diamond model approach.

• 대한원격탐사학회지
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• 제33권5_1호
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• pp.521-535
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• 2017

탑재체를 포함한 위성은 발사 이후 문제 발생시 조치할 수 있는 방법이 한정적이므로, 지상시험지원장비를 이용하여 그 기능을 충분히 검증하여야 한다. 또한 위성의 개발기간이 단축되고 있는 추세와 지상시험지원장비의 개발 완료시점이 전장품 엔지니어링 모델 개발완료보다 앞서야 한다는 점을 고려하면, 지상시험지원장비의 조기 확보는 위성 전체의 개발일정 준수를 위해서 반드시 필요하다고 할 수 있다. 본 논문에서는 지상시험지원장비의 일부인 탑재체 패킷 분석장치를 기능별 모듈화와 외부 파라메터화를 통해 시나리오 기반으로 동작할 수 있게 고안하여 고신뢰도의 지상시험지원장비 조기 확보방안을 제시하고, 구현한 장비를 실재 위성 개발사업에 적용한 결과를 보여준다.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2004년도 학술대회지
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• pp.90-95
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• 2004

Ail of the world, unification and extension of market enlarged scale of international commerce. Thus, not only production but also circulation of goods is brought into relief and transportation of most freights is performed using container. Container vessels are equipped with marry kinds of securing equipments such as Lashing, twistlock. Lashing is installed mainly in container vessel for the container stack with more than 3 containers. Damage of containers often arise from irrelevant lashing arrangement and bring economical loss. Much time and cost is requested for the Calculation of forces on container and determination of lashing arrangement In this study, We developed lashing analysis simulator which performs calculation and presenst relevant lashing arrangement. It will provide more convenient and efficient environment for lashing analysis.

• 한국ITS학회 논문지
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• 제21권5호
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• pp.42-56
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• 2022

본 논문은 무인교통 단속장비 시스템을 개선하는 것이 목적이다. 이를 위하여 기존 무인교통 단속장비에 대하여 개선이 필요한 부분을 정리하고 최신 기술을 적용하여 개선할 수 있는 사항들을 도출하였다. 또한 도출된 개선 사항을 반영하여 새로운 무인교통 단속장비의 설계 및 구현방안을 제시하고자 한다. 주요 개선사항으로서 무인교통 단속장비의 하우징 소재 변경, 장비구성의 간소화, 무게의 경량화와 소프트웨어로 단속용도 변경이 가능하도록 설계 하였다. 본 연구를 통해서 개선된 무인교통 단속장비의 객관적 성능을 평가하기 위하여 공인인증기관에 의뢰하여 KC 인증 및 내구성 시험을 통한 장비의 신뢰도를 확보하였다. 기존 무인교통 단속장비와 공사기간 및 설치비용 등을 비교 평가하여 앞으로 무인교통 단속장비 시장성 확보의 당위성을 제시하고자 한다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 가을 학술논문 발표대회
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• pp.145-146
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• 2022

The demand for a construction method capable of securing a safety environment and improving quality is increasing. There is a high risk of falling when working at a high place in an environment where it is difficult to secure visibility, such as an underground space, and there is a risk of falling if cement liquid waterproof materials are transferred to the top of the scaffold by manpower. In addition, when working on a high place in a poor environment, the quality uniformity of the upper part of the wall is deteriorated. In addition, as waterproof technicians gradually age and decrease, it is difficult to secure them, so it is urgent to prepare countermeasures against the shortage of waterproof technicians. Therefore, the purpose of this study is to develop cement liquid waterproof spouting construction equipment that can secure uniform quality of construction areas to prevent accidents and ensure safety of workers, improve work efficiency and quality due to improvement of work environment. The adhesion performance of the cement liquid waterproof material could be improved by about 20% in accordance with the use of the equipment.

• 대한지역사회영양학회지
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• 제11권3호
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• pp.374-382
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• 2006

The purpose of the study was to investigate the effects of the characteristics of dietitians, the characteristics of school food services, equipment ratio of HACCP facility/equipment and perception of barriers to HACCP implementation on external and internal audit of food safety/sanitation management performance in school food service. An e-mail survey was conducted with 144 dietitians in Gyeongbuk Province. A response rate was 57.6% (N = 83) and data was analyzed using SPSS windows (ver. 12.0). Dietitian perceived facilities/equipment-related and stakeholder-related as the big barriers in implementing a HACCP system. Total scores of sanitation/safety management performance for external and internal audit were similar at 92 and 91 out of 100, respectively. 'Facilities/equipment' and 'HACCP system' categories in both external and internal audit were rated the lowest. As dietitian perceived facilities/equipment-related (p < 0.001) and stakeholder-related (p < 0.05) barriers to HACCP implementation were greater, the scores of the external and internal audits were significantly lower. As dietitian perceived barriers for all categories were greater, the scores of internal audits were significantly lower (p <0.05). As a result of multiple regression analyses, the scores of the external audit was positively associated with career as a school food service dietitian, but was negatively associated with barriers related to facility/equipment, while the scores of the internal audit was negatively associated with barriers related to facility/equipment and employees. This study suggests that supporting programs on securing the facilities/equipment and employee training are needed for successful HACCP implementation in school food service.

• 전기학회논문지
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• 제59권6호
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• pp.1011-1016
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• 2010

It is an important issue to electric power system operations that it can reliably supply large-capacity power to consumption area as due to increasing power demand growth. For this purpose, The FACTS equipment based on Power IT technology with the existing mechanical compensators has been applied to power system. Therefore we suggest on this paper that a plan for coordination control of multiple power compensation equipment in order to increase the utilization of each facility and secure operation margin capacity. As the result of simulation, it is possible to cope actively with a suddenly changed power system. This helps greatly for the voltage stability and supply reliability in a suddenly changed power system.