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Kim, S.H. (author), Park, J. (author), Joo, C. (author), Kim, D. (author), Ha, T. (author)
RecA proteins form a long stable filament on a single-stranded DNA and catalyze strand exchange reaction. The stability of RecA filament changes dramatically with pH, yet its detailed mechanism is not known. Here, using a single molecule assay, we determined the binding and dissociation rates of RecA monomers at the filament ends at various pH....
journal article 2015
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Kim, SH (author), Joo, C. (author), Seong, A (author), Vafabakshsh, A (author), Botvinick, A (author), Berns, A (author), Palmer, TA (author), Wang, Z. (author), Ha, Taekjip (author), Jakobsson, ME (author), Sun, M (author)
It is unclear that how subcellular organelles respond to external mechanical stimuli. Here, we investigated the molecular mechanisms by which mechanical force regulates Ca2+ signaling at endoplasmic reticulum (ER) in human mesenchymal stem cells. Without extracellular Ca2+, ER Ca2+ release is the source of intracellular Ca2+ oscillations induced...
journal article 2015
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Choi, Jung-Kyu (author), Ahn, Byoung-Kwon (author), Kim, Hyoung-Tae (author)
journal article 2015
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Bang, D. (author), Jang, G.W. (author), Hwang, S.H. (author), Han, P.W. (author), Kim, J.W. (author), Koo, D.H. (author), Polinder, H. (author), Ferreira, J.A. (author)
conference paper 2014
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Si, F.T. (author), Kim, D. (author), Santbergen, R. (author), Tan, H. (author), Van Swaaij, R.A.C.M.M. (author), Smets, A.H.M. (author), Isabella, O. (author), Zeman, M. (author)
journal article 2014
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Poelma, C. (author), Franken, M.J.Z. (author), Kim, H. (author), Westerweel, J. (author)
Contact lines are the locations where a gas, liquid and a solid meet. From everyday experience we know that such contact lines can be mobile, for example in the case of a water droplet sliding over a glass surface. However, the continuum description of the flow towards or away from a contact line implies that the forces diverge as one approaches...
conference paper 2014
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Seo, Min-Guk (author), Yang, Kyung-Kyu (author), Park, Dong-Min (author), Kim, Yonghwan (author)
journal article 2014
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Lee, Jeung-Hoon (author), Park, Hyoung-Gil (author), Kim, Jin-Hak (author), Lee, Kyung-Jun (author), Seo, Jong-Soo (author)
journal article 2014
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Ertekin, R.C. (author), Hayatdavoodi, M. (author), Kim, J.W. (author)
journal article 2014
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Khabakhpasheva, T.I. (author), Kim, Y. (author), Korobkin, A.A. (author)
journal article 2014
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Chrismianto, D. (author), Kim, D-J. (author)
journal article 2014
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Kim, J. C. (author), Park, C. (author)
conference paper 2013
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Kim, S. (author), Kim, D.E. (author), Euh, D.J. (author)
Thermal stratification is encountered in large pool of water increasingly being used as heat sink in new generation of advanced reactors. These large pools at near atmospheric pressure provide a heat sink for heat removal from the reactor or steam generator, and the containment by natural circulation as well as a source of water for core cooling...
conference paper 2013
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Lee, C.H. (author), Kim, D.Y. (author), Kim, H.D. (author), Kim, K.C. (author)
Dynamic behaviour and heat transfer characteristics of impinging droplets on a hot surface were studied experimentally. De-ionized water droplet was made through a 31G injection needle and the droplet size was 2 mm. A sapphire plate was heated up to 300ÂșC by a hotplate. A high speed camera was used for visualization, and the frame rate was 4000...
conference paper 2013
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Im, S. (author), Heo, G.E. (author), Sung, H.J. (author), Kim, S.K. (author)
Flow inside a scaled model of nasal cavity was measured by tomographic PIV. The model was constructed with transparent silicon. A refractive index of working fluid was matched to the model index by mixing glycerol and water. Four cameras and double pulse laser system were used for tomographic PIV. To obtain high SNR, red fluorescence particles...
conference paper 2013
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Heo, G.E. (author), Seo, A. (author), Kim, R.E. (author), Kim, S.W. (author), Kim, S.K. (author)
Three physiological functions of nasal breathing (air-conditioning, filtering and smelling) are closely related with airflow characteristics in the human nasal airway. Since fluid mechanical properties are heavily affected by the geometry of flow passage, the changes in anatomical shape of nasal cavity by disorders or surgical treatments alter...
conference paper 2013
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Choi, Y.S. (author), Seo, K.W. (author), Lee, S.J. (author), Kim, S.H. (author), Yun, J.H. (author)
The flows in a naturally evaporating liquid droplet confined by two flat plates were investigated experimentally. A diluted sodium-chloride (NaCl) aqueous solution was used to form the confined droplets. The evaporation of water at the free surface of the droplet built up a concentration gradient inside the solution, which induced a natural...
conference paper 2013
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Kim, H.D. (author), Yi, S.J. (author), Kim, K.C. (author)
This paper reports a technique for measuring the velocity and dissolved oxygen (DO) concentration fields simultaneously in a micro-scale water flow using oxygen sensitive particles (OSParticles) and a conventional micro particle image velocimetry (?-PIV) method. The OSParticles were fabricated using a dispersion polymerization method by...
conference paper 2013
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Wang, K. (author), Tu, X.C. (author), Kim, H.B. (author)
In this paper, echo-PIV and UDV technique were applied to measure the velocity fields of a pipe flow system. The working fluid is mixture of water and kaolin particle. The flow rate of mixture is 0.15 lpm. The error of peak velocity between echo-PIV and UDV were obtained and compared with the theoretical values. This study indicates the...
conference paper 2013
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Kim, S.H. (author), Joo, C. (author), Ha, T. (author), Kim, D. (author)
A is a DNA-dependent ATPase and mediates homologous recombination by first forming a filament on a single-stranded (ss) DNA. RecA binds preferentially to TGG repeat sequence, which resembles the recombination hot spot Chi (5'-GCTGGTGG-3') and is the most frequent pattern (GTG) of the codon usage in Escherichia coli. Because of the highly dynamic...
journal article 2013
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