• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 추계학술대회 논문집 Vol.16
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• pp.546-549
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• 2003

This paper was shown removal characteristic of escherichia coli for discharge tube with globular $SiO_2$. At the result of the removal characteristic experiments of escherichia coli using the discharge tube with globular $SiO_2$, because the electric field is also increased when input voltage is increased, the removal characteristic of escherichia coli was appeared relation connection to input voltage. If a passing number of test water in discharge tube is increased, the removal ratio of escherichia coli is increased because passing number of electric field section is increased. When diameter of globular $SiO_2$ is increased, the removal time of escherichia coli is to be decreased because dielectric polalization of globular dielectric($SiO_2$), Also, the removal ratio of escherichia coli of the discharge tube with globular dielectric($SiO_2$) is appeared higher than the removal ratio of the discharge tube without globular dielectric($SiO_2$).

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제53권3호
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• pp.143-148
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• 2004

This paper shows property conversion of water and removing characteristics of Escherichia coli for discharge tube with $ZrO_2$ beads. At the result of the removal characteristic experiments of Escherichia coli using the discharge tube with $ZrO_2$ beads, because the electric field is also increased when input voltage is increased, the removal characteristic of Escherichia coli was appeared relation connection to input voltage. And if a passing number of test water in discharge tube with $ZrO_2$beads is increased, the removal ratio of Escherichia coli is to be increased because passing number of electric field section is increased. And if diameter of $ZrO_2$beads is increased, the removal time of Escherichia coli is to be decreased because dielectric polalization of $ZrO_2$beads. Also, the removal ratio of Escherichia coli of the discharge tube with $ZrO_2$beads. is appeared higher than the removal ratio of the discharge tube without $ZrO_2$beads. And a satulation punt of ozone and $H_2$ $O_2$generation density inner water was appeared near 60[min].

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 추계학술대회 논문집 Vol.16
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• pp.550-553
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• 2003

This paper was shown water properly conversion and removal characteristic of escherichia coli for discharge tube with $ZrO_2$ beads. At the result of the removal characteristic experiments of escherichia coli using the discharge tube with $ZrO_2$ beads, because the electric field is also increased when input voltage is increased, the removal characteristic of escherichia coli was appeared relation connection to input voltage. And if a passing number of test water in discharge tube with $ZrO_2$ beads is increased, the removal ratio of escherichia coli is to be increased because passing number of electric field section is increased. And if diameter of $ZrO_2$ beads is increased, the removal time of escherichia coli is to be decreased because dielectric polalization of $ZrO_2$ beads. Also, the removal ratio of escherichia coli of the discharge tube with $ZrO_2$ beads. is appeared higher than the removal ratio of the discharge tube without $ZrO_2$ beads. And a salutation point of ozone and $H_2O_2$ generation density inner water was appeared near 60[min].

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 학술대회 논문집 전문대학교육위원
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• pp.169-172
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• 2005

The simulation of Hydraulic pressure distribution of discharge tube with globular beads and the removal characteristic of Escherichia coli by the discharge tube with globular beads were estimated. The removal characteristic of Escherichia coli was related to the input voltage because the electric field is increased according to input voltage. As the passing amount of test water in discharge tube is increased, the removal ratio of Escherichia coli was increased because passing numbers of electric field section is increased.

• 전기학회논문지P
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• 제54권4호
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• pp.198-202
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• 2005

The simulation of hydraulic pressure distribution of discharge tube with globular beads and the removal characteristics of Escherichia coli by the discharge tube with globular beads were estimated. The removal characteristic of Escherichia coli was related to the input voltage because the electric field is increased according to input voltage. As the passing amount of test water in discharge tube is increased, the removal ratio of Escherichia coli was increased because passing numbers of electric field section is increased.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제53권2호
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• pp.103-108
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• 2004

This paper shows the simulation of electric field distribution and removal characteristics of Escherichia coli for water discharge tube with globular $SiO_2$. At the experiments of the removing Escherichia coli used the discharge tube with globular dielectric($SiO_2$), because the electric field is increased when applied voltage is increased, the removed ratio of Escherichia coli was related with increasing of applied voltage. When a passing number of test water in water discharge tube is increased, the removed ratio of Escherichia coli is increased because passing number of territory with electric field is increased. When diameter of globular dielectric($SiO_2$) is increased, the removed time of Escherichia coli was decreased because electric field for dielectric polarization of globular dielectric($SiO_2$) was increased. Also, the removed ratio of Escherichia coli of the water discharge tube with globular dielectric($SiO_2$) was measured higher than the removal ratio of the discharge tube without globular dielectric($SiO_2$)

• 대한환경공학회지
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• 제28권6호
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• pp.634-639
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• 2006

본 연구에서는 구형 $Al_2O_3$를 갖는 방전관에 대한 전기분포의 시뮬레이션과 대장균 제거 특성을 조사하였다. 구형 $Al_2O_3$를 갖는 방전관을 이용한 대장균의 제거 특성을 실험한 결과 인가전압이 증가하면 전계도 증가를 하게 되는데 대장균의 제거 특성은 인가전압 즉 전계강도에 관계가 있음을 알 수 있었다. 그리고 방전관의 시험수 통과량이 증가하면 단위 시간당 전계영역의 통과횟수가 증가하기 때문에 대장균의 제거율이 증가하는 경향을 보였다. 또한 구형 $Al_2O_3$의 직경이 증가하면 유전체의 유전분극이 높아져 전계가 증가하기 때문에 전반적인 대장균 제거시간이 줄어드는 것을 알 수 있었고 구형 유전체를 갖는 방전관의 대장균 제거율은 유전체가 없는 경우보다 훨씬 높게 나타났다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2004년도 춘계학술대회 논문집 방전 플라즈마 유기절연재료 초전도 자성체연구회
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• pp.38-42
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• 2004

In this research, we used discharge tube without dielectric bead or with dielectric beads($SiO_2$, $Al_2O_3$, or $ZrO_2$), and discharge in water for removal of Escherichia coli. At the result of experiments, the removal characteristics of Escherichia coli appeared relation ratio to input voltage. Because, the electric field of discharge tube is increased when input voltage is increased. And, discharge tube used dielectric bead($ZrO_2$), the removal characteristics of Escherichia coli was better than cases of else.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2005년도 추계학술대회 논문집 Vol.18
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• pp.333-335
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• 2005

The simulation of electric field distribution of discharge tube with globular $ZrO_2$ and the removal characteristic of Escherichia coli by the discharge tube with globular $ZrO_2$ were estimated. The removal characteristic of Escherichia coli was related to the input voltage because the electric field is increased according to input voltage. As the particle size of $ZrO_2$ beads increased, the removal time of Escherichia coli was shortened due to the dielectric polarization of $ZrO_2$ beads.

• 한국재료학회지
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• 제34권6호
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• pp.261-266
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• 2024

Although most strains of escherichia coli (E. coli) are harmless, some serotypes can cause serious food poisoning in humans. It is very difficult to eliminate E. coli from our lives. Here we show that E. coli can be eliminated by hydroxyapatite (HAp). Because HAp has a positive charge, the material and E. coli are attracted through electrostatic interactions. Additionally, because the surface of HAp is porous, it enters the pores of the HAp surface removing them from the environment. The amount of adsorption was observed to increase over time, and the zeta potential value of the material tended to be similar to that of E. coli. This phenomenon is thought to have zeta potential similar to that of E. coli as it is adsorbed onto the HAp surface over time. E. coli stained with crystal violet was spread on a glass slide and HAp porous sol powder was dropped to remove the E. coli. We expect that this analysis will open a new direction for antibacterial materials.