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231222s2003 xx ||||| 00| ||eng c |
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|a (NLM)12720312
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|a DE-627
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|a eng
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|a Shinoda, Wataru
|e verfasserin
|4 aut
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|a Rigid-body dynamics in the isothermal-isobaric ensemble
|b a test on the accuracy and computational efficiency
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|c 2003
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 09.12.2003
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|a Date Revised 29.04.2003
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Copyright 2003 Wiley Periodicals, Inc. J Comput Chem 24: 920-930, 2003
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|a We have developed a time-reversible rigid-body (rRB) molecular dynamics algorithm in the isothermal-isobaric (NPT) ensemble. The algorithm is an extension of rigid-body dynamics [Matubayasi and Nakahara, J Chem Phys 1999, 110, 3291] to the NPT ensemble on the basis of non-Hamiltonian statistical mechanics [Martyna, G. J. et al., J Chem Phys 1994, 101, 4177]. A series of MD simulations of water as well as fully hydrated lipid bilayer systems have been undertaken to investigate the accuracy and efficiency of the algorithm. The rRB algorithm was shown to be superior to the state-of-the-art constraint-dynamics algorithm SHAKE/RATTLE/ROLL, with respect to computational efficiency. However, it was revealed that both algorithms produced accurate trajectories of molecules in the NPT as well as NVT ensembles, as long as a reasonably short time step was used. A couple of multiple time-step (MTS) integration schemes were also examined. The advantage of the rRB algorithm for computational efficiency increased when the MD simulation was carried out using MTS on parallel processing computer systems; total computer time for MTS-MD of a lipid bilayer using 64 processors was reduced by about 40% using rRB instead of SHAKE/RATTLE/ROLL
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|a Journal Article
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|a Mikami, Masuhiro
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 24(2003), 8 vom: 30. Juni, Seite 920-30
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnas
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| 773 |
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|g volume:24
|g year:2003
|g number:8
|g day:30
|g month:06
|g pages:920-30
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|a SYSFLAG_A
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|a GBV_NLM
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|a GBV_ILN_350
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|a AR
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|d 24
|j 2003
|e 8
|b 30
|c 06
|h 920-30
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