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单词 anharmonic
释义

Definition of anharmonic in English:

anharmonic

adjectiveanhɑːˈmɒnɪkˌænhɑrˈmɑnɪk
Physics
  • Relating to or denoting motion that is not simple harmonic.

    Example sentencesExamples
    • Rapidly rotating Bose-Einstein condensates confined in anharmonic traps can exhibit a rich variety of vortex phases.
    • The anharmonic dynamics involve diffusive motion and allow sampling of different conformational substates.
    • Experimental and computer simulation studies have revealed the presence of a glasslike transition in the internal dynamics of hydrated proteins at ~ 200 K involving an increase of the amplitude of anharmonic dynamics.
    • In the hydrated samples a ‘glass-like’ transition leading to an anharmonic dynamics is observed.
    • Some studies have found a relationship between the onset of anharmonic motion and activity of proteins.
    • The existence of such a detailed structure of the [upsilon] Fe-His band shape cannot be explained by the anharmonic coupling model of Bitler and Stavrov, which at 10 K predicts only a single line.
    • Our approach is next tested against computer simulations of a multimodule titin model with anharmonic linkers and then applied to experimental data for the unfolding of titin.
    • Furthermore, we expect that small anharmonic corrections present in both the native and the random states will cancel out.
    • Several mechanisms have been proposed to explain the large critical temperature, including a double gap structure and anharmonic effects.
    • To make a rectifier, the researchers considered an anharmonic chain sandwiched between two harmonic caps, one with stiff springs - which vibrate at higher frequencies - and the other with more pliable springs.
    • Motions along the first few eigenvectors are mainly large anharmonic fluctuations and generally can be linked to the biological function of proteins.
    • It was successfully fitted to the anharmonic coupling model, the fitting parameters being close to those obtained earlier.
    • More recently the conclusion about the presence of the anharmonic coupling between the Fe-His and Fe-P displacements has been supported experimentally as well as theoretically using quantum chemical calculations.
    • The cantilever oscillation is anharmonic and asymmetric when the quality factor is low, in contrast with TM AFM in air, where the cantilever oscillation is approximately sinusoidal and symmetric.
    • The nature of the biological processes driven by ATP binding and hydrolysis is, of course, highly anharmonic.
    • The CO band thermal broadening stems from the anharmonic coupling with motions of the heme environment, which, in the glassy state, are frozen in.
    • However, diffusive motion is present at all hydrations and temperatures studied, and the hydration-induced anharmonic motions are not required for activity.
    • Such curves are not characterized by parabolic functions, indicating that hydrogen-bonding interactions are strongly anharmonic.
    • It seems that this transition reflects a partial freezing of the protein, which changes from an anharmonic to a harmonic regime induced by the glass transition in the surrounding solvent.
    • For an anharmonic potential, the spacing between modes changes as energy increases.

Derivatives

  • anharmonicity

  • noun
    Physics
    • The onset of the anharmonicity occurs at temperatures that increase from ~ 180 K to 260 K upon decreasing hydration from 0.5 to 0.1 g saccharide/g D 2 O.
      Example sentencesExamples
      • Other studies reveal the properties of glasses made by one particular sugar, trehalose, in reducing the anharmonicity of slow vibrational modes of embedded proteins.
      • It is also of interest to examine the importance of correcting for anharmonicity with mode scanning by recomputing the binding free energies with the pure harmonic approximation.
      • In addition, unlike the rigid-rotor harmonic oscillator method used in MM-PBSA, this method of calculating configuration integrals accounts for anharmonicity and has been numerically validated.
      • The observed solvent coupling leads to the question of whether the dynamical transition in a solvated protein is controlled by the solvent or whether the intrinsic anharmonicity of protein dynamics also plays a role.
      • The temperature dependence of the FIR absorbance suggests that the anharmonicity of the conformational potential can be quantified, and requires more thorough measurements of this temperature dependence.
 
 

Definition of anharmonic in US English:

anharmonic

adjectiveˌanhärˈmänikˌænhɑrˈmɑnɪk
Physics
  • Relating to or denoting motion that is not simple harmonic.

    Example sentencesExamples
    • For an anharmonic potential, the spacing between modes changes as energy increases.
    • It seems that this transition reflects a partial freezing of the protein, which changes from an anharmonic to a harmonic regime induced by the glass transition in the surrounding solvent.
    • Rapidly rotating Bose-Einstein condensates confined in anharmonic traps can exhibit a rich variety of vortex phases.
    • Our approach is next tested against computer simulations of a multimodule titin model with anharmonic linkers and then applied to experimental data for the unfolding of titin.
    • The anharmonic dynamics involve diffusive motion and allow sampling of different conformational substates.
    • Some studies have found a relationship between the onset of anharmonic motion and activity of proteins.
    • However, diffusive motion is present at all hydrations and temperatures studied, and the hydration-induced anharmonic motions are not required for activity.
    • Such curves are not characterized by parabolic functions, indicating that hydrogen-bonding interactions are strongly anharmonic.
    • Several mechanisms have been proposed to explain the large critical temperature, including a double gap structure and anharmonic effects.
    • The CO band thermal broadening stems from the anharmonic coupling with motions of the heme environment, which, in the glassy state, are frozen in.
    • The cantilever oscillation is anharmonic and asymmetric when the quality factor is low, in contrast with TM AFM in air, where the cantilever oscillation is approximately sinusoidal and symmetric.
    • The nature of the biological processes driven by ATP binding and hydrolysis is, of course, highly anharmonic.
    • In the hydrated samples a ‘glass-like’ transition leading to an anharmonic dynamics is observed.
    • It was successfully fitted to the anharmonic coupling model, the fitting parameters being close to those obtained earlier.
    • Furthermore, we expect that small anharmonic corrections present in both the native and the random states will cancel out.
    • More recently the conclusion about the presence of the anharmonic coupling between the Fe-His and Fe-P displacements has been supported experimentally as well as theoretically using quantum chemical calculations.
    • The existence of such a detailed structure of the [upsilon] Fe-His band shape cannot be explained by the anharmonic coupling model of Bitler and Stavrov, which at 10 K predicts only a single line.
    • Experimental and computer simulation studies have revealed the presence of a glasslike transition in the internal dynamics of hydrated proteins at ~ 200 K involving an increase of the amplitude of anharmonic dynamics.
    • To make a rectifier, the researchers considered an anharmonic chain sandwiched between two harmonic caps, one with stiff springs - which vibrate at higher frequencies - and the other with more pliable springs.
    • Motions along the first few eigenvectors are mainly large anharmonic fluctuations and generally can be linked to the biological function of proteins.
 
 
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更新时间:2024/12/23 15:02:47