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Aspiration technique을 이용한 MDA-MB-231과 MCF-10A의 물성치 측정 비교
박소희(S.H. Park),장지연(J.Y. Jang),김동화(D.H. Kim),허수진(S.J. Heo),전재우(J.W. Jun),김영직(Y.J. Kim),신정욱(J.W. Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In this paper, mechanical properties of MCF-10A and MDA-MB-231 have been measured by using micropipette-aspiration technique. Constants(k1, k2, viscosity) for the three-parameter viscosity model were determined based on the aspirated lengths. Instantaneous stiffuesses measured were 65.7±31.7 and 154.9 ± 90 for MDA-MB-231 and MCF-10A, respectively. These finding are expected to contribute to the areas related to the basic researches on metastasis and/or other potential techniques in diagnoses of the cancer.
A study on the growth and properties of KTP single crystals
이명준,차용원,장지연,오근호,김판채,Lee, M.J.,Cha, Y.W.,Jang, J.Y.,Orr, K.K.,Kim, P.C. The Korea Association of Crystal Growth 1994 한국결정성장학회지 Vol.4 No.1
KTP 종자결정의 육성을 수열법에 의해 행하였으며, 육성결정의 물성은 적외분광 광도계를 이용하여 조사하였다.종자결정의 육성에 있어 큰 성장속도를 나타내는 수열 조건은 다음과 같다. 즉, 온도범위,$430~450^{\circ}C $ ; 수열용매, 4몰 KF용액 ; 온도차, $30<{\triangle}T<65^{\circ}C$ ; 충진율%, 65% ; 육성방법, 수직온도 구배법. 이와 같은조건하에서 얻어진 KTP단 결정의 형태는(100), (011), (201)면이 잘 발달하는 경향이 있었으며 그리고 육성결정 중에는hydroxyl group이 존재하였다. KTP seed crystals were grown by the hydrothermal method and the properties of grown crystals were investigated by means of infrared spectrophotometer. The hydrothermal conditions for high growth rates of seed crystals are as follows: temperature ranges, between , $430 and 450^{\circ}C $ ; hydrothermal solvent, 4m KF solution ; temperatures difference, $30<{\triangle}T<65^{\circ}C$ ; filling %, 65% ; growth method, vertical temperature gradient method. Under these conditions, morphologies of the grown KTP single crystals tended to be bounded by (100), (011) and (201) faces and hydroxyl groups were observed in the grown crystals.