• Title, Summary, Keyword: Plasma

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The Effect of Bovine Plasma for the Preparation of Mayonnaise on Quality Characteristics (Bovine Plasma의 Mayonnaise 제조 적성에 관한 연구)

  • 이진영
    • The Korean Journal of Food And Nutrition
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    • v.15 no.4
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    • pp.350-356
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    • 2002
  • This study was carried out to investigate the effect of bovine plasma for the preparation of mayonnaise on quality characteristics through the tests of viscosity, color, emulsion stability and sensory evaluation. In the case of standard mayonnaise preparation with the bovine plasma addition from 0.01% to 0.1%, The result of viscosity, color, emulsion stability and acceptability are improved. When the bovine plasma(5%) was only used to Prepare mayonnaise without e99 yolk, the result of color and acceptability were reduced, whereas viscosity, emulsion stability were observed as the characteristic of standard mayonnaise. The sample mayonnaise containing the e99 yolk(50%) and bovine Plasma (0.5~1.0%) was observed as the characteristics of standard mayonnaise without color.

The development of RPS (Remote Plasma Source) (리모트 플라즈마용 전원 개발)

  • Kim Soo-Seok;Won Chung-Yuen;Choi Dae-Kyu;Choi Sang-Don
    • Proceedings of the KIPE Conference
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    • pp.245-248
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    • 2002
  • In this paper, the development of the RF power supply for Remote Plasma System is discussed. 7kW, 400kHz Remote Plasma Generator is designed and tested. The main power stage is used for the HB PWM inverter with an LC filter in the secondary circuit. The operation characteristics of Remote Plasma Generator are verified by simulation and experimental results.

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Oxygen Plasma Characterization Analysis for Plasma Etch Process

  • Park, Jin-Su;Hong, Sang-Jeen
    • Journal of the Speleological Society of Korea
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    • no.78
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    • pp.29-31
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    • 2007
  • This paper is devoted to a study of the characterization of the plasma state. For the purpose of monitoring plasma condition, we experiment on reactive ion etching (RIE) process. Without actual etch process, generated oxygen plasma, measurement of plasma emission intensity. Changing plasma process parameters, oxygen flow, RF power and chamber pressure have controlled. Using the optical emission spectroscopy (OES), we conform to the unique oxygen wavelength (777nm), the most powerful intensity region of the designated range. Increase of RF power and chamber pressure, emission intensity is increased. oxygen flow is not affect to emission intensity.

Study on the characteristics of the plasma induced by lap-joint $CO_2$ laser welding of automotive steel sheets (자동차용 강판의 겹치기 $CO_2$ 레이저 용접에서 발생되는 플라즈마 특성에 관한 연구)

  • 남기중;박기영;이경돈
    • Laser Solutions
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    • v.5 no.1
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    • pp.33-42
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    • 2002
  • In order to investigate the characteristics of the plasma induced by lap-joint CO$_2$ laser welding of automotive steel sheets, the effects of welding speed, shield gas flow rate, gap size, and laser beam defocus to plasma intensity emitted from keyhole have been investigated. The plasma light is measured by fiber and photodiode. Also, the plasma images were captured by the high speed digital camera in 1000frames/sec in order to correlate the plasma light signal with plasma pattern. From the results, it is observed that the difference of the plasma intensity for between the deep penetration and partial penetration exists from 1.2 to 2 times. The plasma light intensity decreased in case of the deep penetration Is observed due to the exhausting of the plasma gas under the sheet. On the other hand, under the conditions of the deep penetration, the plasma intensity is significantly increased by controling the conditions decreasing the penetration depth. It was specially founded that the effect of 0.3mm gap size at partial penetration condition is approximately similar to deep penetration in 0mm gap. It is concluded that the plasma intensity is able to evaluate the penetration depth in lap-joint welding and appears to offer the most straightforward correlation to the welding process.

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