• 제목/요약/키워드: Cell division

검색결과 5,209건 처리시간 0.034초

홍화가 인체 대장암세포에 미치는 효과 (Effects of Carthami Flos on Human Colorectal Adenocarcinoma Cells)

  • 한송이;김정아;송호준;채한;권영규;김병주
    • 한국한의학연구원논문집
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    • 제17권2호
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    • pp.129-134
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    • 2011
  • Objective : The purpose of this study was to investigate the anti-cancer effects of Carthami Flos in some kinds of human colorectal adenocarcinoma cells. Method : We used two kinds of human colorectal adenocarcinoma cell lines, such as HT-29 and WiDr cells. We examined cell death by MTT assay and observed the morphological changes with Carthami Flos. Result : We showed that the combination of sub-optimal doses of Carthami Flos and cisplatin noticeably suppresses in HT-29 cells and doxorubicin in WiDr cells. Furthermore, we studied the caspase 3 activity to identify the apoptosis. Conclusion : Our findings provide insight into unraveling the effects of Carthami Flos in human colorectal adenocarcinoma cells and developing therapeutic agents against colorectal cancer.

용융탄산염형 연료전지의 개발현황 및 기술과제 (Technical Issue and Development Status of Molten Carbonate Fuel Cell)

  • 김귀열;윤문수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1991년도 하계학술대회 논문집
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    • pp.251-254
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    • 1991
  • Fuel cell generating technology is to produce electricity directly through electro-chemical process by combining oxygen from the air with the hydrogen obtained in processing fuels such as natural gas, methanol, coal and others. The objectives of this study are to investigate the status of Molten Carbonate Fuel cell technologies.

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Design of a Multiband Frequency Selective Surface

  • Kim, Dong-Ho;Choi, Jae-Ick
    • ETRI Journal
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    • 제28권4호
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    • pp.506-508
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    • 2006
  • A frequency selective surface (FSS), whose unit cell consists of a ternary tree loop loaded with a modified tripole, is proposed to block multiple frequency bands. Target frequency bands correspond to Korean personal communication services, cellular mobile communication, and 2.4 GHz industrial, scientific, and medical bands. Through the adjustment of inter-element and inter-unit cell gaps, and adjustment of the length of elements, we present an FSS design method that makes the precise tuning of multiple resonance frequencies possible. Additionally, to verify the validity of our approach, simulation results obtained from a commercial software tool and experimental data are also presented.

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'Warm-up' of a ${\pi}-cell$ Liquid Crystal Device

  • Lee, Gi-Dong;Bos, Philip J.;Ahn, Seon-Hong;Lee, Kun-Jong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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    • pp.1096-1100
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    • 2003
  • A fast Q-tensor method, which can model the defect dynamics in a liquid crystal director field is presented. The method is used to model the defect dynamics occurring during the "warm-up" of a ${\pi}-cell$ device.

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W-CDMA 시스템의 SSDT 기지국 식별 부호 설계 (Design of SSDT Cell ID Codes for W-CDMA System)

  • 송영준
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2007년도 하계종합학술대회 논문집
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    • pp.69-70
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    • 2007
  • The code division multiple access (CDMA) system capacity is limited by the amount of interference of the system. To reduce the unnecessary interference, this paper proposes optimized cell identification (ID) codes for site selection diversity transmission (SSDT) power control in wideband code division multiple access system of third generation partnership project (3GPP). The proposed SSDT cell ID codes are designed to minimize the problem and to be easily decoded using simple fast Hadamard transformation (FHT) decoder.

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