• Title/Summary/Keyword: 헤모글로빈

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Removal of Hemoglobin from Acrylic Acid Grafted Nylon Fabric The Removal and the State of Adhesion of Hemoglobin on Grafted Nylon Fabric- (아크릴산 그라프트 중합한 나일론 직물의 헤모글로빈 오구 세척성 -그라프트 나일론 직물에 대한 헤모글로빈 부착상태와 세척성-)

  • 오수민;김인영;송화순
    • Textile Coloration and Finishing
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    • v.11 no.3
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    • pp.41-48
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    • 1999
  • The removal of hemoglobin from acrylic acid grafted Nylon fabrics has been investigated. In order to change detergency of Nylon 6 fabric, acrylic acid(AA) were graft copolymerized on Nylon fabric using ammonium persulfate(APS) as a initiator, and then acrylic acid grafted Nylon was treated with NaOH solution. The graft ratio increased linearly with increasing acrylic acid concentration. The graft ratio was the highest when the concentration of APS was 0.05%, and it decreased as the concentration of APS increased. The surface of Nylon fabric became rough due to graft. Moisture regain was increased by graft and alkaline treatment, contact angle was also improved compared with the ungrafted. The hemoglobin was easily solubilized and removed from grafted Nylon fabric, while it was difficult to remove hemoglobin from ungrafted Nylon fabric. The effects of graft on removal of hemoglobin was related with increase of moisture regain and transformation of COOH to COONa by alkaline treatment.

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A Study on Brain Activation during playing a computer game using a fNIRS (컴퓨터 게임 중 fNIRS 기반 뇌 활성화 연구)

  • Kang, Won-Seok;Abibullaev, Berdakh;Lee, SeungHyun;An, Jinung
    • Proceedings of the Korea Information Processing Society Conference
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    • 2009.11a
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    • pp.407-408
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    • 2009
  • fNIRS(functional Near Infrared Spectroscopy)는 비침습형 뇌기능 분석 시스템으로 뇌활성화 시 옥시 헤모글로빈(oxy-hemoglobin)과 디옥시헤모글로빈(deoxy-hemoglobin) 변화량을 측정할 수 있는 장치이다. 본 논문에서는 뇌기능 분석 장치인 fNIRS를 이용하여 피험자가 컴퓨터 게임 중에 어떤 뇌활성화 패턴을 보이는지를 실험하였다. 컴퓨터 게임 주의 및 집중 시 뇌의 전두엽(Frontal Lobe) 영역이 활성화 및 변화되는 것을 실험결과로 확인하였다. 그리고 게임 중 다른 사람이 피험자에게 개입을 하였을 때 전두엽의 활성화 영역이 다른 패턴을 보이는 것을 실험결과로 확인하였다.

Effects of Aspirin on Nitrite Toxicity in Cultured Eel (Anguilla japonica) (양식 뱀장어 (Anguilla japonica)의 아질산 독성에 미치는 aspirin의 투여 효과)

  • Kim, Dong-Wan;Koo, Jae-Geun;Park, Sung -Woo
    • Journal of fish pathology
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    • v.20 no.3
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    • pp.291-297
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    • 2007
  • The effect of aspirin on the recovery of nitrite-induced methemoglobinemia in cultured eels (Anguilla japonica) was studied. Methemoglobinemia was induced by exposing eels to nitrite (120 ㎎ NO2-N/ℓ) for 24 hr. The nitrite exposed eels were bathed in 20 ppm aspirin solution (Aspirin), 0.8 % NaCl solution (NaCl), 20 ppm aspirin plus 0.8% NaCl solution (NaCl + Aspirin) and 50% nitrite free water(control) for 24 hr to recover from nitrite toxicity. Peripheral blood was taken from the arterious bulb from all groups to analyse hematocrit value, hemoglobin concentration, and nitrite concentration of the blood. Histopathological features of gill were also observed. Aspirin and control groups were more effective than NaCl and NaCl + Aspirin groups in recovery of hematocrit value and hemoglobin concentration, methemoglobin rate and nitrite concentration. The histopathological features on the gill of aspirin group were similar to those of normal eels, but other groups showed focal hyperemia in the lamellar carpillaries, epithelial hyperplasia. These results suggested that aspirin was very effective to recover from methemoglobinemia in nitrite-induced cultured eels.

Changes in Blood Parameters of the Cultured Flounder Paralichthys olivaceus Artificially Infected with Staphylococcus epidermidis (Staphylococcus epidermidis로 인위감염시킨 양식넙치의 혈액지수 변동)

  • Sim, Doo-Saing;Jung, Sung-Hee;Park, Hyung-Sook;Chun, She-Kyu
    • Journal of fish pathology
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    • v.6 no.2
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    • pp.123-131
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    • 1993
  • The cultured flounder(Paralichthys olivaceus) was injected with Staphylococcus epidermidis, various hematological and blood chemical changes were monitored over 96 hours. Red blood cell count, hemoglobin hematocrit. mean corpuscular hemoglobin concentration and mean corpuscular hemoglobin were significantly depressed after 24 to 48hours. Total protein, albumin, globulin and total cholestrol were significantly increased by the 24 or 48 hours, Glucose, bilirubin and transaminase were significantly depressed by 24 to 48hours. Erythrocytes were gotten shorter with round-shaped after 48hours inoculated with S. cpidermidis. Hemolytic erythrocytes and neutrophils were showed after 72hours inoculated with S. epidermidis. Price-Jones curve was transformed for left shift after 48hours inoculated with S. epidermidis, therfore staphylococcia appeared hemolytic anemia in the artificially infection.

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Spectral Analysis for Non-Invasive Total Hemoglobin Measurement in the Region from 400 to 2500nm (총헤모글로빈 농도를 비침습적으로 측정하기 위한 400-2500nm 대역의 흡수 스펙트럼 분석)

  • Jeon, Kye-Jin;Kim, Yoen-Joo;Kim, Su-Jin;Kim, Hong-Sig;Yoon, Gil-Won
    • Journal of Sensor Science and Technology
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    • v.10 no.6
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    • pp.273-278
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    • 2001
  • Absorption spectra of blood components have been measured for the purpose of predicting the total hemoglobin concentration. We obtained absorption spectra of major blood components from the visible to near-infrared of $400{\sim}2500nm$ region. In the near-infrared, water is the main absorbing constituent. The amount of water in the sample cell varies depending on the volume of solute concentration(water displacement). We acquired water-compensated spectra by considering the variation of water volume depending on the variation of analyze concentration. Those spectra show inherent absorption peaks of analyzes and linearity with respect to concentration. We selected wavelengths for non-invasive measurement of hemoglobin concentration considering the scattering effect of tissue and the interference of other blood components.

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