• Title/Summary/Keyword: installation

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Prerequisites on the Pre-installation and Installation of Analytical Electron Microscope (전자현미경 관련장비 선택요령 및 설치조건)

  • Kim, Dae-Joong
    • Applied Microscopy
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    • v.25 no.2
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    • pp.80-87
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    • 1995
  • An analytical electron microscope system has been widely used in biology, medicine, veterinary medicine, agriculture, and materials, etc. nowadays in Korea Market since mid of 1980's. How to install and to choose the equipments? The answers are which prerequisites are needed to us. The purpose is going to introduce the prerequisites of the pre-installation and installation of Philips analytical electron microscope(CM 12/STEM and SEM 515, Philips, The Netherlands) in the National Institute of Safety Research, Seoul and to discuss the check-subjects. The check-subjects in the pre-installation and installation are more than 24. The influence of magnetic fields, mechanical vibrations, earth is crucial factor for decision of installation site. The areas of our electron microscope center are $105.6m^2$ and have the Automatic Image Analyzer System(IBAS, Kontron Co., Germany) connecting to the SEM mode. Water temperature was controlled by the NESLAB recirculatory chillers(NESLAB Co., U.S.A.).

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End shape and rotation effect on steel pipe pile installation effort and bearing resistance

  • Saleem, Muhammad A.;Malik, Adnan A.;Kuwano, Jiro
    • Geomechanics and Engineering
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    • v.23 no.6
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    • pp.523-533
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    • 2020
  • The current study focuses on the effect of the end shape of steel pipe piles on installation effort and bearing resistance using the pressing method of installation under dense ground conditions. The effect of pile rotation on the installation effort and bearing resistance is also investigated. The model steel piles with a flat end, cone end and cutting-edge end were used in this study. The test results indicated that cone end pile with the pressing method of installation required the least installation effort (load) and showed higher ultimate resistance than flat and cutting-edge end piles. However, pressing and rotation during cutting-edge end pile installation considerably reduces the installation effort (load and torque) if pile penetration in one rotation equal to the cutting-edge depth. Inclusion of rotation during pile installation reduces the ultimate bearing resistance. However, if penetration of the cutting-edge end pile equal to the cutting-edge depth in one rotation, the reduction in ultimate resistance can be minimized. In comparing the cone and cutting-edge end piles installed with pressing and rotation, the least installation effort is observed in the cutting-edge end pile installed with penetration rate equal to the cutting-edge depth per rotation.

Calculation of Load on Jacket Leg during Float-over Installation of Dual Topsides using Single Vessel (단일 설치선을 사용한 2기 해양플랜트 Topside Float Over 설치 시 Jacket Leg의 하중 계산)

  • Bae, Dong-Yeol;Lee, Seung-Jae;Lee, Jaeyong
    • Journal of Ocean Engineering and Technology
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    • v.29 no.2
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    • pp.135-142
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    • 2015
  • The float over method is the most preferred method for installing heavy topside onto a jacket platform. A very complex platform with multiple jacket structures on a specific field requires multiple installation procedures. This study validated the installation of two topsides using a single installation barge to reduce the operation and installation cost. The hydrodynamic properties of the installation barge during the installation of two topsides were calculated. The tension and fender forces during docking were investigated to show the validity of the proposed dual topside installation method. In conclusion, the operational safety of the proposed procedure was validated through the calculation of the motion of the installation vessel and loads on the jacket legs.

An Investigation into the Actual Condition of Electrical Equipments Installation and Management for Application to IEC60364 in Korea (국제 건축전기설비기준(IEC60364)의 국내 적용 실태조사)

  • Jung, Jin-Soo;Han, Woon-Ki
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.22 no.10
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    • pp.134-140
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    • 2008
  • In this paper an Investigation into the actual condition of electrical equipments installation & management and check the problem of application to IEC60364 in korea construction by the electrical installation technical regulation. building equipments by the electrical installation technical regulation are almost same TT system but the electrical installation technical regulation does not contact with protective conductor(PE conductor). This study derive a problem and resent the solving method of problem causing does not fully understand of IEC60364, mix electrical installation technical regulation and IEC60364 by the actual condition of electrical equipments installation & management in korea.

Comparative Evaluation between Cool Roof and Green Roof in terms of Installation Cost: a Case Study of KNU Campus (설비 투자비용의 관점에서 쿨루프와 옥상녹화의 비교 평가: 경북대학교 캠퍼스 사례를 중심으로)

  • Kim, Jun-Woo;Um, Jung-Sup
    • Journal of Environmental Impact Assessment
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    • v.21 no.6
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    • pp.927-939
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    • 2012
  • Cool roofs are currently being emerged as one of important mechanism to save energy in relation to the building. Although green roof has already gained nation-wide recognition as a typical method of energy saving in the roof, this approach did not provide a realistic evidence that is economically feasible in terms of installation cost. This research is primarily intended to compare installation cost between the two techniques. This research proposes a comparative evaluation framework in a more objective and quantitative way for an installation cost between the two techniques. Kyungpook National University (KNU) was selected as a survey objective and an exhaustive and realistic comparison of installation cost between the two techniques was conducted, based on Life Cycle Cost analysis (initial investment cost, maintenance cost, dismantling and waste disposal expense). It was possible to identify that installation cost of cool roofs is 4.7 times cheaper than that of green roof. Also present value based on probabilistic approach was identified as 0.25 (4.95) higher than the installation cost on the assumption of constant price and interest. It is expected that much more installation cost for the large scale green roof will be required since small-size green roof selected as a survey objective in this study could be operated under less initial installation and maintenance condition.

A Study on the Installation Readiness Management Method of Offshore Plant using CAD Information (CAD 정보를 활용한 해양 배관재 설치 준비율 관리 방법에 관한 연구)

  • Park, JungGoo;Kim, HoJung;Kim, MinGyu;Park, JiChan
    • Journal of the Society of Naval Architects of Korea
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    • v.56 no.2
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    • pp.152-160
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    • 2019
  • In this study, we propose a piping material supply management method using CAD system. The piping materials installed in super large offshore plants have very complicated connection conditions. Therefore, it is very difficult to determine the order of receipt of a large number of installation materials. Therefore, we have developed a system that can automatically check the preparation rate of installation materials prior to the installation process. We have developed an algorithm to obtain connection information among installation items from PDMS system. We have developed an algorithm that can determine the order of installation materials to be installed using the connection information. The order of the installation material is determined by taking into account the constraint conditions for the complete installation of the piping material. We confirm the effectiveness of the developed algorithms in the operating system. This system is also used to manage installation schedules and plan the installation manpower.

Comparative evaluation of different offshore wind turbine installation vessels for Korean west-south wind farm

  • Ahn, Dang;Shin, Sung-chul;Kim, Soo-young;Kharoufi, Hicham;Kim, Hyun-cheol
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.9 no.1
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    • pp.45-54
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    • 2017
  • The purpose of this study is to evaluate various means of wind power turbines installation in the Korean west-south wind farm (Test bed 100 MW, Demonstrate site 400 MW). We presented the marine environment of the southwest offshore wind farm in order to decide the appropriate installation vessel to be used in this site. The various vessels would be WTIV (Wind turbine installation vessel), jack-up barge, or floating crane ${\cdots}$ etc. We analyzed the installation cost of offshore wind turbine and the transportation duration for each vessel. The analysis results showed the most suitable installation means for offshore wind turbine in the Korean west-south wind farm.

A Study on the Improvement of Electrode Installation for Measurement of Ground Resistance through Investigation on the Spot in Buildings (현장조사를 통한 건축물 접지저항 측정용 전극 설치의 개선에 관한 연구)

  • Gil, Hyoung-Jun;Kim, Dong-Woo;Kil, Gyung-Suk
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.5
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    • pp.92-97
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    • 2011
  • This paper deals with the improvement of electrode installation for measurement of ground resistance through investigation on the spot in buildings. The investigation was carried out for an earthing terminal board for measurement of ground resistance, installation of auxiliary electrode, etc. The criteria value is set up by measuring method of ground resistance in international standard. In case of inadequate installation of auxiliary electrode, a relative error is analyzed and adequate installation method of auxiliary electrode is proposed. As a consequence, it is necessary to write direction of ground and equipment, and separate auxiliary electrode for measurement of ground resistance in order to minimize measuring error.

Design of Working Process for Ceiling Glass Installation Robot (천장유리 설치로봇의 자동화 공정설계)

  • Yoo, Bo-Hyun;Lee, Seung-Yeol;Gil, Myeong-Su;Lee, Sang-Heon;Lee, Kye-Young;Han, Chang-Soo
    • Proceedings of the KSME Conference
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    • 2007.05a
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    • pp.837-842
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    • 2007
  • Since construction materials have been towards larger and heavier, the rate of accident associated with installation works of heavy construction materials is increasing. Installation works of heavy construction materials lead to frequent accidents, increasing the WMSDs(Work-Related Musculo-Skeletal Disorders) in construction site. In case of installation work of heavy glass ceiling, the rate of accidents such as falling and collision is increasing as well. This paper describes a ergonomic design of working platform(deck) in a glass ceiling installation robot. As well as, a design of working process is considered to accomplish an efficient installation work. As a result of the design, an installation work of heavy glass ceiling by the robot will be expected safety assurance and retrenchment of the construction cost and period.

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Effective Installation and Operating of High Frequency Ocean Surface Radars in Korea -Part 1: Hardware (고주파 해수면 관측레이더의 국내 설치 및 운용방안 : 하드웨어 부문)

  • Song, Kyu-Min;Cho, Cheol-Ho
    • Ocean and Polar Research
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    • v.34 no.4
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    • pp.453-462
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    • 2012
  • Ocean surface current data in Korea was collected using sets of High-Frequency Ocean Surface Radars (HFOSRs) with 25 radial sites in the frequency range of 5~43 MHz. Site selection and the correct installation of HFOSR are very important considerations in order to secure continuous and reliable results. The installation procedures of HFOSR are summarized as follows: 1. Survey area selection; 2. Investigation of ambient radio waves and installation environment; 3. Domestic license of radio station; 4. Installation of antenna and housing of electrical and communication devices. The current work describes the entire processes of HFOSR installation within Korea.