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Matsumoto, Atsushi; Tobias, I.*; Olson, W. K.*
Journal of Chemical Theory and Computation, 1(1), p.117 - 129, 2005/01
Times Cited Count：11 Percentile：35.72(Chemistry, Physical)We have extended a newly developed approach to study the low frequency normal modes of mesoscopic fragments of linear DNA in order to investigate the dynamics of closed circular molecules of comparable size, i.e., a few hundred base pairs. We have added restraint energy terms and a global minimization step to treat the more complicated, spatially constrained duplex in terms of the intrinsic conformation and flexibility of the constituent base-pair "step" parameters.
Matsumoto, Atsushi; Tobias, I.*; Olson, W. K.*
Journal of Chemical Theory and Computation, 1(1), p.130 - 142, 2005/01
Times Cited Count：9 Percentile：30.02(Chemistry, Physical)Fine structural and energetic details embedded in the DNA base sequence, such as intrinsic curvature, are important to the packaging and processing of the genetic material. Here we investigate the internal dynamics of a 200 bp closed circular molecule with natural curvature using a newly developed normal-mode treatment of DNA in terms of neighboring base-pair "step" parameters. As superhelical stress is accumulated in the DNA, the frequency, i.e., energy, of the dominant bending mode decreases in value, and if the imposed stress is sufficiently large, a global configurational rearrangement of the circle to the figure-8 form takes place. We combine energy minimization with normal-mode calculations of the two states to decipher the configurational pathway between the two states.
Maruyama, Yoichiro; Kubomura, Hiroyuki*; Kasamatsu, Tadashi*; Matsuoka, Shinichi*; Nakano, Fumihiko*; Kan, Hirofumi*
JAERI-Tech 2004-056, 14 Pages, 2004/09
JAERI-Tech-2004-056.pdf:3.49MB
A high average power tunable solid state laser is pumped by the second harmonic of LD-pumped high repetition rate Nd:YAG laser consisting of a single-longitudinal-mode oscillator and amplifiers. To operate the Nd:YAG laser oscillator with a single-longitudinal-mode by injection seeding, the cavity length control is required to coincide the resonant frequency of Nd:YAG laser oscillator with the frequency of seeder. For this purpose, a cavity length control system of the Nd:YAG laser oscillator is developed and the characteristics are studied. With this system, the cavity length is controlled at the pulse repetition rate of 0.5 kHz and the single frequency operation for more than three hours is realized.
G.D.Spriggs*; R.D.Busch*; Sakurai, Takeshi; Okajima, Shigeaki
Annals of Nuclear Energy, 26(3), p.237 - 264, 1999/00
Times Cited Count：13 Percentile：66.07(Nuclear Science & Technology)no abstracts in English
G.D.Spriggs*; R.D.Busch*; Sakurai, Takeshi; Okajima, Shigeaki
Transactions of the American Nuclear Society, 76, p.374 - 375, 1997/06
no abstracts in English
Kaye, S. M.*; Greenwald, M. J.*; U.Stroth*; O.Kardaun*; A.Kus*; Schissel, D. R.*; J.DeBoo*; Bracco, G.*; K.Thomsen*; Cordey, J. G.*; et al.
Nuclear Fusion, 37(9), p.1303 - 1328, 1997/00
Times Cited Count：162 Percentile：96.76(Physics, Fluids & Plasmas)no abstracts in English
Kubo, Hirotaka; Sugie, Tatsuo; Hosogane, Nobuyuki; *; Sakasai, Akira; Higashijima, Satoru; Asakura, Nobuyuki
Plasma Physics and Controlled Fusion, 37, p.1133 - 1140, 1995/00
Times Cited Count：18 Percentile：57.96(Physics, Fluids & Plasmas)no abstracts in English
Tokuda, Shinji; Ozeki, Takahisa
JAERI-Research 94-013, 16 Pages, 1994/09
JAERI-Research-94-013.pdf:0.66MB
no abstracts in English
Ishida, Shinichi; Matsuoka, Mamoru; Kikuchi, Mitsuru; Tsuji, Shunji; Nishitani, Takeo; Koide, Yoshihiko; Ozeki, Takahisa; Fujita, Takaaki; Nakamura, Hiroo; Hosogane, Nobuyuki; et al.
Plasma Physics and Controlled Nuclear Fusion Research 1992, Vol.1, p.219 - 233, 1993/00
no abstracts in English
Hirayama, Toshio; Shirai, Hiroshi; Yagi, Masatoshi; Shimizu, Katsuhiro; Koide, Yoshihiko; Kikuchi, Mitsuru; Azumi, Masafumi
Nuclear Fusion, 32(1), p.89 - 106, 1992/00
Times Cited Count：7 Percentile：33.03(Physics, Fluids & Plasmas)no abstracts in English
Neyatani, Yuzuru; Shimada, Michiya; *; *
Japanese Journal of Applied Physics, 30(8), p.1868 - 1876, 1991/08
Times Cited Count：0 Percentile：0(Physics, Applied)no abstracts in English
Hirayama, Toshio; Kikuchi, Mitsuru; Shirai, Hiroshi; Shimizu, Katsuhiro; Yagi, Masatoshi; Koide, Yoshihiko; Ishida, Shinichi; Azumi, Masafumi
JAERI-M 91-026, 28 Pages, 1991/03
no abstracts in English
Hirayama, Toshio; Kikuchi, Mitsuru; Shirai, Hiroshi; Shimizu, Katsuhiro; Yagi, Masatoshi; Koide, Yoshihiko
Kaku Yugo Kenkyu, 65(SPECIAL ISSUE), p.75 - 97, 1991/03
no abstracts in English
Miura, Yukitoshi; ; Hoshino, Katsumichi; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Maeda, Hikosuke; Matsuda, Toshiaki; Mori, Masahiro; Odajima, Kazuo; et al.
Plasma Physics and Controlled Nuclear Fusion Research 1990, Vol.1, p.325 - 333, 1991/00
no abstracts in English
Naito, Osamu; Hosogane, Nobuyuki; Tsuji, Shunji; Ushigusa, Kenkichi; Yoshida, Hidetoshi
Nuclear Fusion, 30(2), p.195 - 203, 1990/02
Times Cited Count：9 Percentile：38.07(Physics, Fluids & Plasmas)The global energy confinement characteristics of neutral beam heated JT-60 discharges are presented. There is a difference in the dependence of the energy confinement time on the plasma current between limiter and divertor discharges. For limiter discharges, the energy confinement increases with plasma current up to 3.2 MA, whereas for divertor discharges this improvement saturates when the safety factor drops below 3, independent of the location of the X-point. The JT-60 L-mode results indicate that the deterioration in energy confinementfor q < 3, which is also found in H-mode regimes of other devices, may be a universal characteristic of divertor discharges. Regarding the scaling with plasma size, it is shown that the global/incremental confinement time increases with plasma minor radius. For sufficiently large plasmas, however, the global/incremental confinement time is no longer a function of minor radius.
Nucl.Phys., 159(2), p.625 - 641, 1970/00
no abstracts in English
