淡江大學機構典藏:Item 987654321/27504
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    题名: Near Helical Conformations of an Elastic dsDNA Ribbon
    作者: 周子聰;Zhou, Zi-cong;黎璧賢;Lai, Pik-yin
    贡献者: 淡江大學物理學系
    日期: 2003-06-30
    上传时间: 2009-12-31 10:13:05 (UTC+8)
    出版者: World Scientific Publishing
    摘要: We find analytically the conditions to form a nearly helical conformation for a model of double-stranded DNA under external force and torque. For such conformations, the tilting angle can be either oscillatory or decaying with increasing arclength, depending on the relationship among the force, torque and initial tilting angle. Both conformations are possible for a small initial tilting angle while only the oscillatory solution is possible for a large initial tilting angle. Phase diagram that depicts the oscillatory and decaying solutions is calculated. The corresponding linking number, twist, writhe number, relative extension and the locus of the chain are also calculated analytically.
    關聯: International Journal of Modern Physics B 17(16), pp.3021-3032
    DOI: 10.1142/S0217979203018387
    显示于类别:[物理學系暨研究所] 期刊論文

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