Results 251 to 260 of about 463,791 (292)
A novel directed evolution platform for engineering chemically gated protein switches.
Chem Commun (Camb)Vázquez-Rivera LA +4 more
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Nature, 1969
The simple geometric ideas of plate theory are extended to include some forms of plate evolution. The most important of these occurs where three plates meet. Such triple junctions are divided into two groups, stable and unstable, according to whether or not they can retain their geometry as the plates move.
D. P. McKENZIE, W. J. MORGAN
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The simple geometric ideas of plate theory are extended to include some forms of plate evolution. The most important of these occurs where three plates meet. Such triple junctions are divided into two groups, stable and unstable, according to whether or not they can retain their geometry as the plates move.
D. P. McKENZIE, W. J. MORGAN
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Dynamical evolution of triple systems
Astrophysics and Space Science, 1988The study of the classical three-body problem lasts nearly 300 years. But some concrete examples have been obtained only by computers in the general three-body problem. For the first time, such works were begun at the Astronomical Observatory of Leningrad State University in 1965 by T.A. Agekian and J.P. Anosova, Later V.V.
J. P. Anosova, V. V. Orlov
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Evolution from double to triple-antimalarial drug combinations
Transactions of the Royal Society of Tropical Medicine and Hygiene, 2014Drug combinations are used to treat multiple-drug resistant malaria parasites and to attempt to further delay the evolution of drug resistance. Most current antimalarial combinations are binary but it is likely that new triple drug combinations will be required in the future.
Shanks, G. Dennis +2 more
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Nature, 1973
The condition for stability at a triple junction of three normally spreading ridges should read: all ridge orientations may be stable if and only if the three ridge elements occupy an angular spread of more than 180°. This consideration leads to the conclusion that, in one mode of formation of an RRR triple junction, at least one active ridge segment ...
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The condition for stability at a triple junction of three normally spreading ridges should read: all ridge orientations may be stable if and only if the three ridge elements occupy an angular spread of more than 180°. This consideration leads to the conclusion that, in one mode of formation of an RRR triple junction, at least one active ridge segment ...
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Dynamical evolution of triple systems
Astrophysics and Space Science, 1986This article reviews numerical experiments on the three-body problem carried out at the Leningrad University Astronomical Observatory during the past 20 years. Systematic studies of triple systems with negative total energy have yielded the following main results.
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Triple junction motion and grain microstructure evolution
Acta Materialia, 2005The classical concepts of grain growth in polycrystals are based on the dominant role of grain boundaries. This is reflected by the well known von Neumann-Mullins relation. According to this approach triple junctions do not affect grain boundary motion, and their role in grain growth is reduced to maintaining the thermodynamically prescribed ...
G GOTTSTEIN, Y MA, L SHVINDLERMAN
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Wavelength insensitive asymmetric triple mode evolution couplers
Optics Communications, 2001This article describes the analytic behavior of an asymmetric triple mode evolution coupler. This new design, based on window filter functions, is analyzed by the coupled mode theory, and its performance verified by the method of lines. The validity of the formulation based on mode coupling is determined, where fabrication tolerances are assessed and ...
Vitor Marino Schneider +1 more
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Triple and quadruple comparison-based interactive differential evolution and differential evolution
Proceedings of the twelfth workshop on Foundations of genetic algorithms XII, 2013We propose a triple comparison and a quadruple comparison-based mechanism for enhancing differential evolution (DE), especially for interactive DE (IDE) where the method can be used to reduce IDE user fatigue. Besides the target vector and trial vector from normal DE, opposition vectors generated by opposition-based learning are used to determine ...
Yan Pei, Hideyuki Takagi
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