• Title/Summary/Keyword: Research Equipment

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Feasibility Analysis for the Introduction of Safety Certification System for Assembled Temporary Equipment and Materials (조립된 가설기자재 안전인증제도 도입의 타당성 분석)

  • Jeong, Seong Choon;Kwon, Jun Hyuk;Won, Jeong Hun;Kwon, Yong Jun
    • Journal of the Korean Society of Safety
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    • v.35 no.3
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    • pp.32-42
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    • 2020
  • In this study, in order to secure the necessity of introducing the safety certification system for the assembled temporary equipment and materials, the feasibility of the introduction was analyzed through literature review, structural analysis, and actual experiments and surveys related to the assembled temporary equipment and materials. In the previous studies, it was found that the research on the assembled temporary equipment and materials was insufficient, and it was possible to grasp the necessity of introducing the safety certification system for the assembled temporary equipment and materials. In addition, in the results of the serious accident analysis, it was found that the soundness of the temporary equipment and materials is determined by the structural characteristics after it was assembled. As a result of the feasibility analysis of the introduction of the safety certification of the assembled temporary equipment and materials through structural analysis, it is possible to effectively and rationally reflect the main geometrical influence factors, and to introduce the safety certification system that can test the procedures and procedures of the assembled temporary equipment and materials and based on it. It was found that there is a need. As a result of feasibility analysis on the necessity of introducing the safety certification system for assembled temporary equipment and materials through actual experiments, the existing single member performance evaluation has limitations in evaluating the structural performance of the assembled temporary equipment and materials. It was found that there is a need to introduce a safety certification system. As a result of gathering opinions on the feasibility of introducing the safety certification system for assembled temporary equipment and materials of manufacturers and users through the survey, it was found that the overall positive response result was high and the effectiveness was high.

A Study on Improving the License System for Construction Equipment Operators (건설기계 조종사 면허체계 개선에 관한 연구)

  • Kim, Sung-Keun;Lee, Junbok;Kim, Hong Cheol
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.26 no.6D
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    • pp.995-1002
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    • 2006
  • Construction equipment plays an important role as one of resources in construction process. It is obvious that the machine intensive construction method achieves productivity and quality improvement as well as safety improvement. The number of registered construction equipment in Korea is over 320,000 in 2005 according to the national statistics safety, but recent crisis of construction equipment industrialist has been deepen by lack of skilled workers, rise in wages, diminution of working and etc. The main objective of this paper is to propose an improved management and application policy for the better construction equipment utilization. A classification method for construction equipment and a licensing system for construction equipment operators are newly suggested to revise the Construction Equipment Management Law. In order to satisfy the objective, this research performs literature reviews on domestic and overseas related laws and regulations for operating license, and conducts surveys and interviews with experts in the field of construction equipment industry. The results of this research can be considered as an important reference to update the Law that can improve construction productivity and equipment operating rate.

An Ergonomic Approach for Optimized Layout of Training Ship's Bridge

  • Jang, Jun-Hyuk;Kim, Hong-Tae;Sim, Joung-Hoon;Kim, Hae-Sik
    • Journal of Navigation and Port Research
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    • v.35 no.9
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    • pp.707-715
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    • 2011
  • To propose an ergonomic layout on the bridge, this study conducted a usability evaluation on the on-bridge navigational equipment of a college training ship that is in use at present. Through the usability evaluation on the training ship navigators, the possibility of operational errors with navigational equipment, the possibility of readout errors with display devices and even the effect of navigational equipment on navigation were evaluated beyond the scope of existing layouts, which adopt only the importance and usage frequency of navigational equipment. By taking ergonomic variables into consideration, this study suggested an optimized layout for on-bridge navigational equipment using a mathematical programming model.

A Study on Global Medical Device Market Trends and Regulation of Medical Equipment in Major Countries (글로벌 의료기기산업의 시장동향 및 주요 수출국의 의료기기 관련 규제에 관한 연구)

  • LEE, Wo-Chun;PARK, Se-Hun
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.75
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    • pp.159-177
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    • 2017
  • In this paper, we examined trends and regulations of the global medical equipment industry through literature search. The medical equipment industry is attracting attention as a new growth engine in the Fourth Industrial revolution. However, the medical device industry is a highly competitive field due to product diversity, short product life cycle and technological advances. In addition, Medical equipment are related to human health and safety. Therefore, it can only be exported if it is approved by national or international standards. Therefore, from the development stage of the product, the medical equipment should designate the country to be exported and develop a medical equipment that meets the requirements for licensing the medical equipment in the country. Therefore, In this paper, In this paper, we will present the practical considerations of the medical equipment exporting company by examining the global medical equipment market trends and the regulations related to medical equipment in major countries.

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The Survey for the Maximum Noise Level of Portable Audio Equipments and Its Assessment (휴대용 음향기기 소음실태 및 소음도 평가)

  • Lee, Jaewon;Gu, J.H.;Park, H.G.;Lee, W.S.
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.23 no.1
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    • pp.3-8
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    • 2013
  • Recently, the impact on hearing induced by using of portable audio equipment have been actively studied. In general, Because they turn the volume up with loud background noise, they may expose to louder noise. In this study, we investigated the maximum noise level of 20 the domestic potable audio equipment and estimated the impact of the hearing induced by portable audio equipment in according to exposure time. As a result, the use of portable audio equipment is assumed to be more three hours when the level of more than 50 % of volume is most likely to affect the hearing.

An Encoding Method for Presentation of ISO 19848 Data Channel and Management of Ship Equipment Failure-Maintenance Types (ISO 19848 데이터 채널 표현과 선박 기관장비 고장·유지보수 유형 관리를 위한 코드화 기법)

  • Hwang, Hun-Gyu;Woo, Yun-Tae;Kim, Bae-Sung;Shin, Il-Sik;Lee, Jang-Se
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.24 no.1
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    • pp.134-137
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    • 2020
  • Recently, there are emphasized to support the maintenance and management system of vessels using acquired data from engine part equipment. But, there are limitations for data exchange and management. To solve the problem, the ISO published ISO 19847 and 19848. In this paper, we analyze the ISO 19848 requirements related to identify data channel ID for ship equipment, and propose the examples for applying encoding techniques. In addition, we suggest the proposed technique for applying of managing the failure and maintenance type of the ship's engine part facilities by examples. If this method is applied, the vessel's equipment can exchange data through the sharing of the code table, and express what response is needed or acted, including where the failure occurred.

Medical Equipment Support System for Official Development Assistance : Case of Kitengela Health Center in Kenya (공적개발원조 의료기기 지원 체계 연구 : 케냐 키텐젤라 보건소 사례)

  • Choi, Tae-Seon
    • The Journal of the Korea Contents Association
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    • v.16 no.3
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    • pp.257-268
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    • 2016
  • The purpose of this research is to find the cause of low degree of utilization of medical equipment that are provided as Official Development Assistance(ODA) and to suggest an effective medical equipment support system for ODA. This research analyzes the supporting process of the medical equipment as ODA in Kitengela Health Center in Kenya. As the result of analysis, it has been found that the following problems. 1) It was found that users was attended insufficient to demand medical equipment. 2) The determination of medical equipment request was inadequate. 3) It was appeared to be organized the compilation of the budget for purchases and operation of medical equipment 4) The improvement of procurement system of medical equipment was appeared to need. 5) It was appeared to need to build conditions for installation of medical equipment. 6) It was necessary to secure finance, to conduct periodic management training, and to ensure available human resources in management and maintenance in order to sustain the medical equipment management ability and it is encouraged to promote leadership in healthcare facility management. Finally, the theoretical and practical implications of this research are discussed.

Verification of Equipment Number Equation Considering New Types of Ships (선종 변화를 고려한 의장수 계산식의 적합성 검증)

  • Ku, Namkug;Ha, Sol;Lee, Kyu-Yeul;Yang, Jin-Hyeck;Bae, Jae-Ryu;Lee, Soo-Ho
    • Journal of the Society of Naval Architects of Korea
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    • v.52 no.2
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    • pp.119-124
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    • 2015
  • The purpose of this research is a verification of the current equation for calculating equipment number and a suggesting a method for development of a rational new equation. The equation for calculating equipment number consists of total surface area of a ship that fluid resistance act on. Equipment number determines the specification of anchoring and mooring equipment such as anchor weight, anchor chains length and diameter, the number, length and breaking load of tow lines and mooring lines. The equation for equipment number calculation is basically derived considering x, y components of a wind and current force acting on a ship. But this equation is only based on a tanker, which was main type of ships when the equation was derived. Therefore, verification of the equation is required for other types of ships, such as container carrier, LNG carrier, etc. Therefore, in this research, we find out the equation for equipment number calculation should be revised for other types of ships especially the container carrier, by comparing wind and current force acting on a ship to holding force of an anchor and anchor chains, which are selected based on the equipment number.

Effects of sheds and cemented joints on seismic modelling of cylindrical porcelain electrical equipment in substations

  • Li, Sheng;Tsang, Hing-Ho;Cheng, Yongfeng;Lu, Zhicheng
    • Earthquakes and Structures
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    • v.12 no.1
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    • pp.55-65
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    • 2017
  • Earthquake resilience of substations is essential for reliable and sustainable service of electrical grids. The majority of substation equipment consists of cylindrical porcelain components, which are vulnerable to earthquake shakings due to the brittleness of porcelain material. Failure of porcelain equipment has been repeatedly observed in recent earthquakes. Hence, proper seismic modelling of porcelain equipment is important for various limit state checks in both product manufacturing stage and detailed substation design stage. Sheds on porcelain core and cemented joint between porcelain component and metal cap have significant effects on the dynamic properties of the equipment, however, such effects have not been adequately parameterized in existing design guidelines. This paper addresses this critical issue by developing a method for taking these two effects into account in seismic modelling based on numerical and analytical approaches. Equations for estimating the effects of sheds and cemented joint on flexural stiffness are derived, respectively, by regression analyses based on the results of 12 pieces of full-scale equipment in 500kV class or higher. The proposed modelling technique has further been validated by shaking table tests.