• Korean Journal of Applied Biomechanics
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• v.14 no.2
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• pp.15-26
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• 2004

The purpose of this study was to investigate the kinematic variables of peters motion in parallel bars. The subjects were 3 male national gymnasts. For this study, kinematic data were collected using video camera. Coordinate data were low-pass filtered using a fourth-order Butterworth with cutoff frequency of 6Hz. Each valuables analyzed was used to compare kinematic features between the subjects. The conclusions were as follows; 1. For a stable regrasp motion, the subjects appeared to increase horizontal and vertical displacement during the DS phase because it induce a vertical elastic of body and reaction of bar for the US phase. 2. For a stable hand standing motion of the regrasp, the subjects appeared to maintain the fast vertical and horizontal velocity during the DS phase, but in contrary during the US and Air phase the vertical and horizontal velocity appeared to do decrease. 3. When the arm lean angle and the trunk lean angle maintain a big angle during the DS phase, the subjects appeared to do a stable performance to release in a high position.

• Corrugated packaging logistics
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• v.2 no.7
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• pp.138-139
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• 1995

• 월간산업보건
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• s.280
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• pp.59-62
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• 2011

• Proceedings of the Membrane Society of Korea Conference
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• 1995.06a
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• pp.27-38
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• 1995

Based on innovative membrane module concepts reverse osmosis and nanofiltration are going to become important instruments in environmental engineering. One example is the Disc-Tube-module and its application for the purification of landfill leachate. Currently over 45 different landfills are using this ROCHEM DT-module, in some cases combined with the high pressure reverse osmosis versions of this module, operating at up to 120 bar and 200 bar. This state of the art membrane technology and the DTF-module for nanofiltration, developed by ROCHEM on the basis of the DT-module and RO-systems for the purification of landfill leachate, make possible in hybrid processes permeate recovery rates of more than 97 % with concentration factors up to 40.

• Nuclear industry
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• v.8 no.12 s.70
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• pp.11-15
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• 1988

영국 우라늄연구소가 지난 9월 런던에서 개최한 심포지움에서는 원자력산업계의 국제적인 공동사업 추진에 대한 유용성이 강조되었다. 다음은 Wendy Peters씨가 이 심포지움에서 발표된 논문을 요약하여 Atom지 11월호에 게재한 내용이다.

• 월간산업보건
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• s.256
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• pp.43-45
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• 2009

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1237-1239
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• 2008

Imaging Systems Technology is conducting research and development in large area flexible plasma displays. These displays will be used for low cost dynamic signage and billboards. In this paper, IST will report its current progress in achieving very bright full color displays.

• Proceedings of the Zoological Society Korea Conference
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• 1996.10a
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• pp.131.1-131
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• 1996

No Abstract, See Full Text

• 월간산업보건
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• s.279
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• pp.45-48
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• 2011

이 논문은 나노물질을 다룰 때 발생하는 나노입자에 대한 특성과 관리방안 중 하나인 환기시설의 효과에 대하여 연구한 논문이다. 나노관련 연구는 아직 명확한 건강상 영향이 체계적으로 기술되어 있지는 않지만 산업보건에서는 새로운 분야이고 많은 연구가 이루어지지 않았기에 향후 우리나라도 연구가 필요할 것으로 판단되어 소개하고자 한다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.39 no.6
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• pp.487-497
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• 2011

Numerical analysis has been performed to investigate the rotor speed and pitch range variations when the airspeed is increased in autorotation. Transient Simulation Method(TSM) was used to obtain the steady states of autorotation. The rotor blade was analyzed by the two-dimensional compressible Navier-Stokes solver in order to adapt to the airspeed increase and the results were used in the transient simulation method. Meanwhile, the Pitt/Peters inflow theory was used to supply the induced velocity fields. For the prescribed torque equilibrium state, the combinations of velocity, shaft angle, and pitch angle were produced to investigate the rotor speeds and variable ranges. The rotor tip Mach number and rotor speed were correlated and the trim range of pitch angle was observed with respect to the shaft angle decrease.