• Title/Summary/Keyword: supporter

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Development and Analysis of the Highly Efficient Support System in a Liquid Hydrogen Vessel (액체수소 저장탱크용 고효율 지지 시스템 개발 및 해석)

  • Yun, Sang-Kook;Park, Dong-Heun
    • Journal of Advanced Marine Engineering and Technology
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    • v.31 no.4
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    • pp.363-369
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    • 2007
  • Probably the most significant heat transfer in the cryogenic liquid hydrogen storage tank from the atmosphere may occur through its support system. In this paper the efficient support system for the cryogenic storage vessel was newly developed and analysed. The support system was composed of a spherical ball as a supporter to reduce the contact area. which is located between two supporting SUS tubes inserted SUS and PTFE blocks. Numerical analyses for temperature distribution, and the thermal stress and strain of the support system were performed by the commercial codes FLUENT and ANSYS. The heat transfer rate of the supporter was evaluated by the thermal boundary potential method which can consider the variation of thermal conductivity with temperature. The results showed that the heat transfer rate through the developed supporter compared with the common SUS tube supporter was significantly reduced. The thermal stress and strain were obtained well below the limited values. It was found that the developed supporter can be one of the most efficient support systems for cryogenic liquid storage vessel.

The Distribution of Radiation Current on a Halfwave Dipole Antenna and its Conductive Supporter (도전성지주에 평행한 반파장 Dipole Antenna의 전류분포)

  • 박성기
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.4 no.2
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    • pp.29-34
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    • 1967
  • On clarifing radiations from antenna, it is necessary to consider the contribution of the current distribution on te conductive supporter. The expression has not only analized the total radiative current distribution on the dipole antenna and its conductive supporter, in case when the former was placed closely and in parallel to the latter, but also shown the results of practical experiment.

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An Analysis of the Job and Competency of Healthy Family Supporter for Culture Work (문화사업 담당 건강가정사 양성 및 보수교육을 위한 직무와 역량 분석)

  • Lee, Yoon-Jung
    • The Journal of the Korea Contents Association
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    • v.11 no.4
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    • pp.485-496
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    • 2011
  • The aims of this article are analyzing the job of healthy family supporter for culture work and understanding their core and development competency. As a result, the primary job of healthy family supporter for culture work is planning culture and volunteer work with family program, their core competencies are understanding of daily life and culture, interpersonal skills, creative thinking, problem-solving and social skills and development competencies are planning and evaluation program, word processing skill, creative thinking and problem-solving.

Selfie Stick design case for enhancing portability and preventing error of pushing mobile phone button (휴대성을 강화한 셀카봉 디자인 제안)

  • Kim, Gyeyeong
    • Proceeding of EDISON Challenge
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    • 2015.03a
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    • pp.496-499
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    • 2015
  • The objective of the study is to develop selfie sticks to enhance portability and prevent error of pushing mobile phone button. The main target of selfie sticks is women and the size of selfie sticks is too big to put it in their bag. Also when people put mobile phone in a selfie stick, people push its button easily. Sometimes mobile phone is turned off or the volume is controlled because of pushing its button. The researcher focused on designing a solution that enhances portability and preventing error of pushing the button. The researcher understood structure of selfie stick. It consists of a mobile phone supporter and a length adjuster. The researcher designed the mobile phone supporter for enhancing portability and the length adjuster for preventing to push the mobile phone. The researcher designed a part which connects a mobile phone supporter with a length adjuster and made selfie stick fold. Also, sponges are partly put on the mobile supporter. It can reduce situation of pushing the mobile phone button. The selfie stick design from the study has an opportunity to distinguish using the product and carrying it and have people use the selfie stick conveniently.

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A Study on the Development of a Calf Supporter for Improving Balance Capacity (균형능력 향상을 위한 종아리 서포터 개발에 관한 연구)

  • Hwang, Sunkyu;Park, Jinhee;Kim, Jooyong
    • Journal of Fashion Business
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    • v.25 no.1
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    • pp.39-50
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    • 2021
  • The purpose of this study was to investigate how wearing calf support and applying of electronic muscle simulation(EMS) affected the ability to balance. In this study, the one leg standing test for static balance and the Y balance test for dynamic balance were used to assess balance. At this time, the pressure of the calf support was different to produce two supporters, and a difference between wearing the support before, after, and after applying EMS was evaluated. Seven men in their 20s with healthy bodies were measured five times each with a five-minute break, taking into account muscle fatigue, and the difference between each variable was analyzed through a follow-up test using nonparametric statistical analysis. Studies have shown more difference from supporter B with a more appropriate pressure (mmgh) for increasing balance capability than from supporter A. In addition, it was confirmed that the use of EMS electrostimulation and support before measuring the balance capability resulted in a greater difference. The proper pressure (mmgh) supporters and EMS can increase the ability to balance, and these results can be expected to improve the balance ability of ordinary people in their daily lives.

Relationship between the Initial Clamping Force and the Proper Position of Supporter in the Wedge Type Rail Clamp (쐐기형 레일클램프에서 초기압착력과 지지대의 적정위치사이의 관계)

  • Han, Dong-Seop;Lee, Seong-Wook;Han, Geun-Jo;Lee, Kwon-Soon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.1
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    • pp.357-362
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    • 2006
  • The wedge type rail clamp compresses with small clamping force at first, and with large clamping force when the wind speed increases because of the wedge working. At this time in order to display the wedge working, the rail clamp slips along a rail. If the supporter is not installed in the rail clamp when the wind speed increases more and more, the structure will occur overload which leads the structure to fracture. So the supporter has to be installed in the rail clamp. The proper position of this supporter is determined by the initial clamping force and the wege angle. Therefore in this study we adopted 5-kinds of wedge angle as the design parameters, and carried out the finite element analysis, in order to analyze the relationship between the initial clamping force and the proper position of supporter in the wedge type rail clamp.

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Relationship between the Initial Clamping Force and the Position of Supporter in the Wedge Type Rail Clamp (쐐기형 레일클램프에서 초기압착력과 지지대의 위치사이의 관계)

  • Lee, Seong-Wook;Han, Geun-Jo;Lee, Kwon-Soon;Han, Dong-Seop
    • Journal of Navigation and Port Research
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    • v.31 no.1 s.117
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    • pp.65-70
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    • 2007
  • The wedge type rail clamp compresses with small clamping force at first, and with large clamping force when the wind speed increases bemuse of the wedge working. At this time in order to display the wedge working, the rail clamp slips along a rail. If the supporter is not installed in the rail clamp when the wind speed increases more and more, the structure will occur overload which leads the structure to fracture. So the supporter has to be installed in the rail clamp. The proper position of this supporter is determined by the initial clamping force and the wege angle. Therefore in this study we adopted 5-kinds of wedge angle as the design parameters, and carried out the finite element analysis, in order to analyze the relationship between the initial clamping force and the position of supporter in the wedge type rail clamp.

The Design of Supporter to Prevent Overclamping in Wedge Type Rail clamp (쐐기형 레일클램프의 과클램핑 방지를 위한 지지장치 설계)

  • 한근조;안찬우;전영환;심재준;한동섭;김병진
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1446-1449
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    • 2003
  • In this study we analyze operation principle of wedge type rail clamp using in the harbor and when wind force applies to container crane, we calculate deformation in each part of rail clamp. As a result of calculation, we will design rail clamp supporter that forbid overload to be applied at rail clamp according to adjust climbing wedge distance of roller. It would be adapted various container capacity and wind velocity.

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The Effect of a Hot-wire Supporter on the Flow Between Corotating Disks in Shroud (밀폐된 동시회전 디스크 유동장에 대한 열선 지지대의 영향)

  • Kong Dae-Wee;Joo Won-Gu
    • Proceedings of the KSME Conference
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    • 2002.08a
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    • pp.663-666
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    • 2002
  • Hard disk drived (HDD) in computer are used extensively as data storage capacity. The trend in the computer industry to produce smaller disk drives rotating at higher speeds requires an improved understanding of fluid motion in the space between disks. The distribution of pressure disturbance on disks has relation to flow structure. To investigate the flow structure, time-resolved hot-wire measurements of the circumferential velocity component were obtained for the flow between the center pair of four disks of common radius $R_2$ coretating at angular velocity ${\Omega}$ in a fixed cylindrical enclosure. Hot-wire supporter acts as an obstruction in this case. The effects of rotating speed and size of hot-wire supporter diameter between disks on the flow driven by disks were investigated. Velocity spectra at the fixed space were measured to obtain the structure of inner and outer region in flow field.

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The vibrational characteristics of nano-imprinting stages with respect to supporter types (지지방식의 차이에 따른 나노 임프린팅 스테이지의 진동 특성 비교)

  • Lee, Sung-Hoon;Park, Sung-Bin;Lee, Kang-Wook;Jeong, Jay-I.;Yim, Hong-Jae
    • Proceedings of the KSME Conference
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    • 2008.11a
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    • pp.948-954
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    • 2008
  • In this study, vibrational characteristics of two nano-imprinting stages is analyzed and compared with respect to the methodology to support the upper-plate of the stage. The first type of the stage has three supporters at each corners of the stage and one thrust bearing at the center of the stage. The other type of the stage has four supporter in each corner of the stage without a thrust bearing. The FEM software with flexible modeling is used for the normal mode analysis. The result depicts the difference of vibrational characteristics caused by the difference of support methods. The design criteria for the precision nano-imprinting stage is also discussed.

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