• Title/Summary/Keyword: Plugging

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Pegboard Evaluation Automation Utilizing RFID System for Telerehabilitation (원격재활을 위한 RFID를 이용한 페그보드 평가 자동화)

  • Choi, Hyun-Ho;Yang, Yoon-Seok;Kim, Jung-Ja;Kim, Nam-Gyun;Ryu, Moon-Ho
    • Journal of Institute of Control, Robotics and Systems
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    • v.13 no.12
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    • pp.1192-1197
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    • 2007
  • This study proposes an automated pegboard utilizing the RFID system with multiple reader antennas for the rehabilitation services and the occupational therapy. The system automates the scoring by detecting the plugging correctness as well as the plugging status. It also aims to increase the patient's interest and the functional intelligence. The system was prototyped and the RFID read rate (over 99.998%) was confirmed. The system was also tested for the automatic capability of the scoring the session. The proposed system will be served as the typical example for the ubiquitous rehabilitation devices.

Estimation of Bearing Capacity for Open-Ended Pile Considering Soil Plugging (폐색정도를 고려한 개단말뚝의 지지력 산정)

  • 백규호
    • Proceedings of the Korean Geotechical Society Conference
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    • 2002.03a
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    • pp.397-404
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    • 2002
  • The bearing capacity of open-ended piles is affected by the degree of soil plugging, which is quantified by the IFR. There is not at present a design criterion for open-ended piles that explicitly considers the effect of IFR on pile load capacity In order to investigate this effect, model pile load tests using a calibration chamber were conducted on instrumented open-ended piles. The results of these tests show that the IFR increases with increasing relative density and increasing horizontal stress of soils. The unit base and shaft resistances decrease with increasing IFR. Based on the results of the model pile tests, new empirical relations for base load capacity and shaft load capacity of open-ended piles are proposed. In order to check the accuracy of predictions made with the proposed equations, the equations were applied to the full-scale pile load test preformed in this study, Based on the comparisons with the pile load test results, the proposed equations appear to produce satisfactory predictions.

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e-Biz Component from UML, EJB & CORBA

  • Jang, Yeun-Sae
    • Proceedings of the CALSEC Conference
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    • 2001.02a
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    • pp.545-560
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    • 2001
  • Agenda ■ Modeling S/W Components ■ Methods of how to implement a Component ■ History of Web Computing ■ e-Biz. frame wok using EJB ■ Legacy Integration Modeling S/W Components ■ Simple components ■ Component assembly-plugging ■ Processes & Methodologies. (omitted)

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Effect of Pile Driving Energy on Steel Pipe Pile Capacity in Sands (모래지반에서 말뚝의 항타에너지가 강관말뚝의 지지력에 미치는 영향)

  • 백규호
    • Journal of the Korean Geotechnical Society
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    • v.17 no.6
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    • pp.99-110
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    • 2001
  • Open-ended pipe piles are often used for the foundations of both land and offshore structures because of their relatively low driving resistance. In this study, load tests were performed on model pipe piles installed in calibration chamber samples in order to investigate the effects of pile installation method on soil plugging and bearing capacity. Results of the test program showed that the incremental filling ratio (IFR), which is used to indicate the degree of soil plugging in open-ended piles, decreased (i) with increasing hammer weight for the same driving energy and (ii) with increasing hammer weight at the same fall height. The base and shaft resistance of the piles were observed to increase (i) with increasing hammer weight for the same driving energy and (ii) with increasing hammer weight at the given same fa11 height. The jacked pile was found to be have higher bearing capacity than an identical driven pile under similar conditions, mostly due to the more effective development of a soil plug in jacking than in driving.

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