• Title/Summary/Keyword: MEEP

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Dielectric Constant Anomaly near the Consolute Point of a binary Mixture of MEEP and water (상전이 온도 근처에서 관찰되는 MEEP-물로 구성된 두 종류 섞임체의 유전상수 비정상성)

  • Cho, Chang-Ho;Seo, Young-Seok;Kim, Sei-Chang;Kim, Young-Baek
    • The Journal of Natural Sciences
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    • v.8 no.1
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    • pp.17-22
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    • 1995
  • Dielectric constant was measured near the consolute point of a binary mixture of water and Poly[bis(methoxyethoxyethoxy)phosphazene], MEEP. Dielectric constant changed incontinously at phase separation temperature plotted against the concentration to abtain coexistence curve. The critical temperatures and the critical concentration were $71^{\circ}C$, 5.5% as determined from the coexistence curve, respectivley. The critical exponent of dielectric constant, $\theta$, was 0.85. The dependence of dielectric constant on frequency is discussed in this report.

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A Study on the Collection Characteristics of a Moving Electrode Electrostatic Precipitator - II. Effect of Wave Form of Pulse Energization and Dust Concentration - (이동 전극형 전기집진기의 집진특성에 관한 연구 - II. 펄스 하전 파형 및 분진농도의 영향 -)

  • Kim Yong-Jin;Ha Byung-Kil;Jeong Sang-Hyun;Hong Won-Seok;Yoo Joo-Sik
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.16 no.10
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    • pp.908-913
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    • 2004
  • This study investigates the effect of the wave form of pulse energization and dust concentration on the collection characteristics of a moving electrode electrostatic precipitator (MEEP). Under the same specific corona power, the collection efficiency of the MEEP for the lower dust concentration ($2g/m^3$) becomes higher than that for the higher concentration ($10g/m^3$). Both the collection efficiency and specific corona power increase with increasing pulse period for the same value of applied voltage. The collection efficiency of MEEP is higher than that of the conventional fixed plate electrode electrostatic precipitator.

A Study on the Collection Characteristics of a Moving Electrode Electrostatic Precipitator - I. Effect of Collection Plate Velocity - (이동 전극형 전기집진기의 집진특성에 관한 연구 - I. 집진판 이동 속도의 영향-)

  • Kim Yong-Jin;Ha Byung-Kil;Jeong Sang-Hyun;Moon Sang-Cheol;Yoo Joo-Sik
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.16 no.10
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    • pp.901-907
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    • 2004
  • This study investigate the effect of collection plate velocity on the electrical and collection characteristics of a moving electrode electrostatic precipitator (MEEP). Though a high resistivity fly ash is attached at the collecting electrode, the MEEP has very stable characteristics of voltage and corona current. Collection efficiency, corona current, and overall collection efficiency are increased, as the magnitude of the collection plate velocity increases.

Characteristics of efficiency by using the combined electrostatic precipitator (조합형 전기집진기를 이용한 집진효율 특성)

  • 김용진;정상현;홍원석;황태근;옥영욱;김두현;하병길;함병훈
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 1999.10a
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    • pp.242-243
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    • 1999
  • 전기집진기는 산업 분진 및 폐가스 집진을 위해 널리 이용되며, 고전기 저항 분진에 의한 집진극 표면의 역전리가 전기집진기에서 가장 큰 문제이다. 이런 역전리 현상을 방지하기 위해 가스온도 제어, 가스조건, 하전 제어 등 다양한 방법이 시도되고 있다. 전기집진기에서 고 비저항 분진 및 역전리의 영향으로부터 높은 집진효율을 얻기 위한 방법 중 하나로 이동 전극형 방식(Moving Electrode Electrostatic precipitator, MEEP)과 고정전극형 (Fixed Electrode Electrostatic precipitatior, FEEP)에 펄스하전 방식으로 구성된 조합형 전기집진기가 개발되고 있다.(Toshiaki Misaka etc. 1996)(중략)

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The Effect of Expected Perspective on the Role of Genre and Attitude toward Utilizing Genre in Broadcast Ad on the Liking of Broadcast Ad Genre (방송광고에서 장르의 역할에 대한 기대관점과 활용에 대한 태도가 방송광고 장르에 대한 호감도에 미치는 영향)

  • Kim, Chulho
    • Journal of Digital Convergence
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    • v.12 no.12
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    • pp.491-506
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    • 2014
  • The purpose of this study is to examine the effect of expected perspective on the role of genre and attitude toward utilizing genre in broadcast ad on the liking of broadcast ad genre as appeal types of creativity. The results show that there is a significant correlation between macro-environmental expected perspective(MEEP) on the role of genre and a negative attitude toward utilizing genre in broadcast ad. A significant correlation between micro-practical expected perspective(MPEP) and a positive attitude was also found. Consumers with an integrated-situational expected perspective(ISEP) show a more significant relationship with the dual attitude. Consumes with a MPEP have a stronger liking on comparative ad and sex appeal ad, and consumers with an ISEP show a median liking. Consumers with positive attitude have a stronger liking on comparative ad and sex appeal ad, and consumers with a dual attitude show a median liking that is between the positive attitude-based consumers' and negative attitude-based consumers'.