• 제목/요약/키워드: Liquid cells

검색결과 903건 처리시간 0.03초

소건중탕 추출액과 노제의 세포증식 및 면역활성도 비교연구 (Comparison Study on Activated Degree of Immunity and Anti-Cancer Effect in Extracted Liquid of Shogunjung-tang and It's Distilled Liquid)

  • 김광중;배만종;서영
    • 동의생리병리학회지
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    • 제18권1호
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    • pp.179-186
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    • 2004
  • In order to search for the ways of use in distilled liquid of Shogunjung-tang, an oriental medical prescription, the study examined the differences in the activated degree of cells and immunological effects, which are supplied by restoratives such as the existing extracted liquid and distilled liquid of Shogunjung-tang. As seen from the above results, both the extracted liquid of Shogunjung-tang and distilled liquid have remarkable efficiency in the increase of cells, the efficient condition of immunity activation degree possibly formed by these two and activation of cells and organism, in which distilled liquid in the beginning and the extracted liquid later tend to show its efficiency.

셀갭 변화에 따른 Flexible 기판 TN-LCD의 전기광학특성 (Electro-Optical Performances of Flexible Liquid Crystal Display on Twisted Nematic Mode according to Cell Gap)

  • 강희진;황정연;이휘원;김종환;서대식
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 추계학술대회 논문집 Vol.18
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    • pp.289-290
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    • 2005
  • We have investigated the electro-optical (EO) performances of the flexible liquid crystal display (LCD) on twisted nematic (TN) mode according to variation of cell gap in comparison with glass LCD. There were four kinds of cells which were having cell gaps of 3$\mu$m, 4$\mu$m and 5$\mu$m, especially the lowest 2$\mu$m on flexible and glass substrates separately. The EO performances of the flexible cells on the rubbed potyimide (PI) were almost the same those of glass cells. The response time of flexible cells was shorter than that of glass cells but the alignment of liquid crystal (LC) of flexible cells was weaker than that of glass cells. The residual DC of flexible cells was on the increase like that of glass cells in compliance with lowering cell gap.

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녹용추출액과 노제의 세포증식 및 면역활성도 비교 연구 (Comparison Study on the Cell Increase and Immunity Activation Degree in The extracted liquid of Cervus Elaphus Xanthopgus and It's Distilled Liquid)

  • 김광중;안상우;송효인
    • 동의생리병리학회지
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    • 제18권1호
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    • pp.148-156
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    • 2004
  • In order to searched for the ways of use for distilled liquid of Cervus Elaphus Xanthopgus, the study examined the difference of immunological efficiency generally raised in the existing extracted liquid and distilled liquid of Cervus Elaphus Xanthopgus. As seen from the above results, both the extracted liquid of Cervus Elaphus Xanthopgus and distilled liquid have remarkable efficiency in the increase of cells, the efficient condition of immunity activation degree, the effect of anti-cancer possibly formed by these two and activation of cells and organism, in which distilled liquid in the beginning and the extracted liquid later tend to show its efficiency.

기관(氣管) 상피세포 생리 및 약리 실험모델로서의 공기-액체 접면 일차배양법 연구 (Studies on the Air-Liquid Interface Culture as an Experimental Model for Physiology and Pharmacology of Tracheal Epithelial Cells)

  • 이충재;이재흔;석정호;허강민
    • Biomolecules & Therapeutics
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    • 제10권4호
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    • pp.281-286
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    • 2002
  • In this study, we intended to get a preliminary data for establishing rat tracheal surface epithelial(RTSE) cell culture system as an experimental model for physiology and pharmacology of tracheal epithelial cells. Primary culture on the membrane support and application of the air-liquid interface system at the level of cell layer were performed. The cell growth rate and mucin production rate were measured according to the days in culture. The results were as follows: this culture system was found to manifest mucocilliary differentiation of rat tracheal epithelial cells, the cells were confluent and the quantity of produced and released mucin was highest on culture day 9, the mucin was mainly released to the apical side and tbe free $^3{H}$-glucosamine which was not incorporated to process of synthesis of mucin was left on the basolateral side. Taken together, we suggest that air-liquid interface culture system can be used as a substitute for immersion culture system and as an experimental model for in vivo mucus-hypersecretory diseases.

액정 소자의 열적 안전성에 관한 연구 (Study for Thermal Stability of Liquid Crystal Device)

  • 이상극;황정연;서대식;이준웅
    • 한국전기전자재료학회논문지
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    • 제17권4호
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    • pp.439-442
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    • 2004
  • In this study, we investigated about electrooptics characteristic of three kinds of TN cell on the polyimide surface. Monodomain alignments of thermal stressed TN cell over temperature of liquid crystal isotropic phase were almost the same as that of no thermal stressed TN cells. However, the thermal stressed TN cells have many defects. Also, threshold voltage and response time of thermal stressed TN cells show the same performances as no thermal stressed TN cells. There were little changes of value in these TN cells. However, transmittances of TN cells on the polyimide surface decrease with increasing thermal stress time. Finally, the residual DC voltage of the thermal stressed TN cell on the polyimide surface shows decrease of characteristics as increasing thermal stress time. Therefore, the thermal stability of TN cell was decreased by high thermal stress for the long times.

The modification of materials for flexible Dye-Sensitized Solar Cells

  • Kim, Chang-Ho;Han, In-Young;Kim, Jae-Hoon
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.1560-1563
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    • 2009
  • We fabricated Dye-Sensitized Solar Cells(DSSCs) which are modified by using liquid crystals(LCs) and electro-deposition on cathode electrode in order to apply to flexible DSSCs. We deposited Pt metal layers on ITO electrode through the method of electro-deposition process during low-temperature. We could expect the long-term stability by using ionic liquid(IL) and liquid crystals(LCs). We can also see the enhancement of efficiency through orientation of LCs in gel-state electrolyte using liquid crystals at the DSSCs.

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Capillary Flow in Different Cells of Thuja orientalis, Gmelina arborea, Phellodendron amurense

  • Chun, Su Kyoung
    • 한국가구학회지
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    • 제28권3호
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    • pp.248-258
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    • 2017
  • A study was carried out to observe the 1% aqueous safranine solution flow speed in longitudinal and radial directions of softwood Thuja orientalis L., diffuse-porous wood Gmelina arborea Roxb., and ring-porous wood Phellodendron amurense Rupr., Longitudinal flow was considered from bottom to top while the radial flow was considered from bark to pith directions. In radial direction, ray cells and in longitudinal direction tracheids, vessel and wood fiber were considered for the measurement of liquid penetration speed at less than 12% moisture contents(MC). The variation of penetration speed for different species was observed and the reasons behind for this variation were explored. The highest radial penetration depth was found in ray parenchyma of T. orientalis but the lowest one was found in ray parenchyma of P. amurense. The average liquid penetration depth in longitudinal trachied of T. orientalis was found the highest among all the other cells. The penetration depth in fiber of G. arborea was found the lowest among the other longitudinal cells. It was found that cell dimension and also meniscus angle of safranine solution with cell walls were the prime factors for the variation of liquid flow speed in wood. Vessel was found to facilitate prime role in longitudinal penetration for hardwood species. The penetration depth in vessel of G. arborea was found highest among all vessels. Anatomical features like ray parenchyma cell length and diameter, end-wall pits number were found also responsible fluid flow differences. Initially liquid penetration speed was high and the nit gradually decreased in an uneven rate. Liquid flow was captured via video and the penetration depths in those cells were measured. It was found that even in presence of abundant rays in hardwood species, penetration depth of liquid in radial direction of softwood species was found high. Herein the ray length, lumen area, end wall pit diameter determined the radial permeability. On the other hand, vessel and fiber structure affected the longitudinal flow of liquids. Following a go-stop-go cycle, the penetration speed of a liquid decreased over time.

프로젝션 TV 적용을 위한 액정 디스플레이의 열적 및 UV 안전성에 관한 연구 (Study on thermal and UV stability of Liquid Crystal Display for Projection TV Application)

  • 최성호;황정연;배유한;이휘원;서대식
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 추계학술대회 논문집 Vol.18
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    • pp.287-288
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    • 2005
  • In this study, we have investigated electro-optical characteristics of thermal and UV stressed TN cells on the rubbed polyimide surface. Mono-domain alignments of thermal stressed TN cells over temperature of liquid crystal isotropic phase were almost same that of no thermal stressed TN cells. Also, threshold voltage and response time of thermal stressed TN cells were same that of no thermal stressed TN cells. Finally, the residual DC voltage of the thermal stressed TN cell on the polyimide surface show decrease of characteristics as increasing thermal stress time. Therefore, thermal stability of TN cell was decreased by high thermal stress for the long times.

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자궁경부 액상세포검사의 수기 검사법에 대한 고찰 - $SurePath^{TM}$ 검사법을 준용한 수기 검사법으로 - (Evaluation of the Manual Method of Liquid-Based Uterine Cervicovaginal Cytology - By The Manual Method Based on $SurePath^{TM}$ Methodology)

  • 박종명;장진욱;임소여;서인수;이종기
    • 대한세포병리학회지
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    • 제15권2호
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    • pp.86-91
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    • 2004
  • Liquid-Based Uterine Cervicovaginal Cytology is known to be a sensitive and effective screening method for cervical neoplasm $MonoPrep^{TM},\;ThinPrep^{TM},\;and\;SurePath^{TM}$ methods have been recently used as Liquid-Based Uterine Cervicovaginal Cytology techniques, and the $SurePath^{TM}$ method has been used in Sung-Yoon Reference Laboratory since 2003. The goal of Liquid-Based Uterine Cervicovaginal Cytology is to separate cervical epithelial cells from non-target cells, red blood cells and neutrophils. This report describes a study which evaluated cellularity, stainablilty, and cellular changes of epithelial cels in samples processed using a manual technique as compared to samples processed using $SurePath^{TM}$ automated method. The samples processed by means of a manual technique contained a cellularity of epithelial cells similar to that of the samples processed using the $SurePath^{TM}$ automated method. In addition, we compared variable density gradient reagents, including dextran, dextrose, and sucrose, to $SurePath^{TM}$ gradient media in order to evaluate cell fractionation and cellularity of epithelial cells. 10% dextran of gradient media shows good fractionation. The samples processed with 10% dextran demonstrated sufficient cellularity of epithelial cells and shows the fewest cellular changes. In conclusion, using a manual technique on these samples is easier to read than those results obtained using the $SurePath^{TM}$ automated method.

Three states of stromal cells-solid, liquid, and aerosol-and innovative delivery methods not previously reported

  • Copcu, Hasim Eray
    • Archives of Plastic Surgery
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    • 제48권5호
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    • pp.549-552
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    • 2021
  • Clinical applications of stromal cells obtained mechanically from adipose tissue are quite popular methods. However, generally accepted protocols still do not exist. In this study, three new delivery methods using different protocols are presented as innovative methods in accordance with an approach called "Indication-based protocols." In mechanical methods, before cutting the fat tissue with ultra-sharp blades, which we define as "Adinizing," mixing it with different liquids such as saline or plasma provides the stromal cells in liquid form with high number and viability as a final product. At the same time, since stromal cells and extracellular matrix are preserved by mechanical methods, it was deemed appropriate to use the term total stromal cells (TOST) instead of stromal vascular fraction for this final product, unlike the product obtained with the enzyme. TOST can be combined with plasma and used for dermal filling in "solid" form. In addition to this filling effect, it will also cause a change in the tissue regeneratively. Finally, the stromal cells obtained from liquid can be applied clinically in aerosol form with the help of nebulizer. We believe that three innovative delivery methods can be used successfully in the treatment of many clinical situations in the future.