• Proceedings of the Computational Structural Engineering Institute Conference
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• 2007.04a
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• pp.357-360
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• 2007

In the area of domestic construction industry, recently, standardization of construction. globalization of constructional and a building information arc required to advance increase productivity, shorten the term of works and reduce the cost of construction. The objective of this is to offer basic data of process new thesis and development for automated building equipment design system based on 3D CAD building information. This study contribute the development of automated Building equipment design system based on 3D which helps to conduct the equipment design handily and quickly.

• Clean Technology
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• v.8 no.2
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• pp.101-110
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• 2002

Concurrent development system which includes design, analysis, basic experiment and performance test procedure for rotary atomizing painting equipment was established. Basic design specifications of the equipment parts were determined according to the overall design requirements of painting equipment using conceptual design model. On the basis of derived design specifications, design and analysis procedures was proposed for developing each equipment part. Also proposed are experiment and test methods to investigate the spray and transfer characteristics of designed painting equipment, and their measurement variable, process and evaluation criteria are constructed. The present development system was validated by applying its entire processes to the actual painting equipment.

• Journal of Ocean Engineering and Technology
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• v.26 no.6
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• pp.33-38
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• 2012

In our study, a closed-type penetration unit for standard penetration test (SPT) equipment was developed in order to operate in an underwater environment. This type causes energy dissipation, mainly due to the small gap between an airtight case and moving hammer. The dissipation was estimated through a CFD analysis. The computed dissipated energy was less than 1.2% compared to the potential energy of the hammer with the given gap. Subsequently, the impact energy of the underwater SPT equipment was within 1.2% of that for the SPT equipment on land.

• Journal of the Korean Society of Propulsion Engineers
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• v.22 no.4
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• pp.125-132
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• 2018

The mechanical ground support equipment of a Korea Space Launch Vehicle-II launch complex is a collection of systems used for transporting, erecting and lowering the launch vehicle. It also provides an interface for supplying propellants. In this paper, compositions, functions and design results of mechanical ground support equipment are introduced. Additionally, the operational concept of each piece of equipment is presented with operation procedure.

• 제어로봇시스템학회:학술대회논문집
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• 1986.10a
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• pp.387-392
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• 1986

DC motor is excellent in controllability and efficiency, but vulnerable in maintenance with respect to AC motor owing to the development of power devices and microelectronics, excellent AC motor drives which have characteristics as similar as DC motor's have been developed. Thyristor motor equipment that has an important role with Inverter in the field of AC motor drives was developed in the late 1960. There was no research about thyristor motor in Korea, then thyristor motor equipment was all imported. By this we started to develop in 1983, was tested in 1984, 1985. Now we express ourselves about thyristor motor equipment development procedure and characteristics.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.58 no.2
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• pp.231-234
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• 2009

Recently, to the development of a highly information-oriented society to a large increase in dependence on power, Accordingly, it is need that active development and spread of preservation technology on accident prevention in operation electrical equipment. However, to lack of the use on maintenance technology of power equipment and to increase of power usage is growing deterioration of power equipment, this is a cause on casualties, property damage and the occurrence of disasters is a growing. GIS equipments which are operated from domestic except the equipment which manages from the big business are depend on a most visual inspection, and do inspection method or measuring instrument etc. a condition which is not supplied widely. Currently, many to measure instrument used in domestic is very expensive or foreign, it will be able to substitute this, the development necessity of the diagnosis technique and the measuring instrument is demanded.

• Proceedings of the KIEE Conference
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• 2003.04a
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• pp.253-257
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• 2003

This paper presents the Development of Switching Power Supply for testing communication equipment. The communication equipment need many kinds of voltage(-48V,27V,12V,5V,3.3V), and in case of low voltage needs large current($10{\sim}20A$). The previous Linear Power Supply was very heavy, has low efficiency and poor power-factor for testing communication equipment. This development has good efficiency and high power-factor using switch mode power supply technique. This Development of Switching Power Supply is composed of eight converters. The principles of operation, feature, and design considerations are illustrated and verified through the experiment with 600W prototype.

• Journal of Intelligence and Information Systems
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• v.29 no.4
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• pp.415-430
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• 2023

The Material·Part·Equipment industry is mostly an industry centered on small and medium-sized enterprises (SMEs) and is an important industry for revitalizing the local economy, which is the source of manufacturing competitiveness. In this study, we tried to derive the implications necessary for the development of the Material·Part·Equipment industries by analyzing the competitiveness of the Material·Part·Equipment industries in the Chungcheong region. To this end, we analyzed the industrial development stage and competitiveness of each region (Daejeon, Sejong, Chungnam, and Chungbuk) based on business scale factor, industrial growth rate, industrial specialization, and regional competitiveness for the Material·Part·Equipment industries in the Chungcheong region. Using data such as the number of employees, the number of businesses, and the amount of production in 2014 and 2019, significant industrial groups by region were identified considering the level of industrial specialization and regional competitiveness. In addition, by identifying the positions of these significant industrial groups in the stage of industrial development, suggestions for the development of the Material·Part·Equipment industries in the Chungcheong region were presented.

• The Korean Journal of Community Living Science
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• v.27 no.4
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• pp.891-906
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• 2016

This study examined the working site environment of Korean native cattle raising farmers and their actual condition of wearing personal protective equipment as part of preventing disasters during agricultural work. To this end, 160 Korean cattle raising farmers were surveyed and a site visit was performed on 10 farms. According to an examination of the cattle breeding environment, the major harmful factors were in the following order: fine dust (12.8%), organic feed dust (10.3%), contact with cattle (9.7%), manure (8.2%), germs and viruses (8.1%), harmful gases (7.4), contact with obstacles (6.7), and temperature (6.6%). The current status of the rate of wearing protection was in the order of gloves (20.9%), working hats (19.7%), boots (19.6%), masks (10.9%), protective clothing (8.9%), and specialized working clothing (6.6%). Nevertheless, most Korean cattle raising farmers recognized the risks when they did not wear protective equipment and the need for wearing protectors, but they mostly did not wear personal protective equipment due to a lack of knowledge on the selection of appropriate personal protective equipment and the discomfort they experience when they put on protectors. Even when they put on protective equipment, 38% was inappropriate for the farming work environment. Given the research results, improvements on and the development of specialized working clothing and personal protective equipment to protect farmers from harmful and dangerous materials from the cattle nurturing environment is necessary. Overall, based on the study data, objectified data collection, a determination of the necessary performance elements of personal protective equipment, and R&D will be needed through an on-site current status investigation.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2008.04a
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• pp.269-274
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• 2008

It is attempted that the standardization of the construction, globalization of the engineering construction and an information oriented construction spread by setting a goal of the advanced construction industry and productivity increase of human resources within the country. Hence, it has been brought in the information oriented construction of BIM based technology for the field of construction and equipment of Korea. The current study that examines the possibility of application of 3D ; that is BIM based programs of building equipment, and make better the problems of 3D building equipment system through the Pilot Test, indicates the way of growth development about the construction of building equipment process system.