843 papers
Through numerical hydrodynamic simulations, this study reveals that an active mixture of polar and apolar self-propelled components exhibits a unique regime of spatiotemporal chaos characterized by chaotic band-like structures and proliferating topological defects, driven by a non-monotonic response to the polar component's density and activity.
Using Monte Carlo simulations, this study reveals that the collapse behavior of a single polymer chain is governed by the competition between chain stiffness and attraction range, where the relative magnitude of persistence length and attraction range determines whether the transition is sharp or gradual and dictates how stiffness influences the collapse temperature.
This study utilizes in situ cryo-confocal fluorescence microscopy to elucidate the coupled dynamics of gas bubble nucleation, growth, and entrapment at the solidification front of carbonated water, revealing how these processes depend on solidification velocity and gas diffusion to establish critical conditions for bubble formation.
This study investigates the fluorescence lifetime response of molecular rotors in ternary PEG mixtures, demonstrating that a linear mixing rule applies to these systems and providing data to critically evaluate the semi-quantitative accuracy of free volume theory in characterizing microviscosity.
This paper introduces a model charge density approach to Ewald summations that accelerates convergence by canceling multipole moments of the crystalline charge distribution, a method validated on gallium arsenide and shown to clarify long-standing implementations in the CRYSTAL code.
This computational study using Brownian dynamics simulations reveals that multi-chain amphiphilic triblock copolymers in dilute solutions form robust, highly elongated 3D networks with superior viscosity and structural integrity under shear compared to diblock systems, offering critical insights for designing polymer-based drug carriers through architectural optimization.
The paper introduces *i-Rheo-Tempo*, a robust, model-free, and quadrature-free method that accurately reconstructs the shear relaxation modulus from complex viscosity data by utilizing an exact second-derivative representation, thereby solving the frequency-to-time inverse problem without requiring parametric fitting or predefined spectra.
This paper demonstrates that floating-electrode unidirectional transducers (FEUDTs) can convert porous functional materials into actively pumped transport platforms by generating unidirectional surface acoustic waves that drive directional fluid flow up to 600 times faster than diffusion, particularly when the acoustic wavelength matches the characteristic pore dimension.
This paper demonstrates that a semiflexible polymer acts as a multiscale probe of active matter, revealing how active forces reorganize internal fluctuation spectra by selectively enhancing low-frequency modes and shifting spectral weight to longer wavelengths, while also highlighting limitations in predicting global size measures due to activity-induced bond stretching.
This study identifies six distinct concentration regimes in salt-free aqueous xanthan solutions by demonstrating that power-law dependencies of specific viscosity on concentration persist across the entire shear-rate range, thereby extending traditional equilibrium scaling laws to finite shear rates to better understand shear-induced interaction mechanisms.
This paper presents an analytical study using singular perturbation and WKB approximation to derive a finger selection mechanism for Saffman-Taylor fingers in tapered Hele-Shaw cells, demonstrating that the gap gradient significantly influences finger width and can be used to stabilize or destabilize fingering instabilities.
Using large-scale simulations of a two-dimensional athermal Ornstein-Uhlenbeck particle model, this study reveals that while persistent active forces induce distinct morphological changes in the core and shell of cooperatively rearranging regions and create non-monotonic dynamical responses, the facilitation length in active glass formers still obeys a generalized scaling law governed by the persistence length, indicating that activity reshapes but does not fundamentally alter large-scale transport mechanisms.
This paper introduces an improved soft penetrable sphere colloid model that accurately describes charge and excluded volume interactions in antibody solutions by incorporating the Y-shaped molecular structure and amino acid-level details, thereby enabling the quantitative prediction of thermodynamic and dynamic properties using directly derived structural parameters.
This study demonstrates that the geometry of an initial concave powder surface directly governs jet dynamics and energy dissipation, establishing a quantitative framework where increasing the concave radius reduces ejection velocity and height through a validated mechanical model.
This study demonstrates that soluble surfactants suppress hydrodynamic coarsening in bicontinuous liquid-liquid phase separation primarily through Marangoni stresses rather than reduced interfacial tension, with the inhibition peaking at an intermediate Péclet number due to an optimal balance between surfactant replenishment and gradient retention.
This study reports that individual magnetic Quincke rollers driven by a clockwise rotating magnetic field exhibit regular clockwise helical or wavy trajectories at various frequencies, but can unexpectedly display anomalous counterclockwise motion under specific conditions determined by the interplay of initial magnetic dipole orientation, field frequency, and translational velocity.
This study demonstrates that the pinch-off of density-matched non-Brownian rod suspensions reveals a continuum breakdown governed by rod length rather than diameter, leading to an effective extensional viscosity that increases with both volume fraction and aspect ratio while following a modified scaling law for spherical particles.
This study leverages a convolutional neural network-based field predictor to optimize the hierarchical structure and graded mineralization of bioinspired functionally graded materials, demonstrating that such configurations effectively minimize stress concentrations at tendon-bone interfaces by emulating the natural mechanics of the enthesis.
This study establishes that strain is the critical control parameter governing the transition from sedimentation to full suspension in dense, non-Brownian particle systems under both steady and oscillatory shear, enabling the development of a predictive model and unified state diagram for resuspension thresholds across diverse flow conditions.
This paper establishes a deep rheological equivalence between steady shearing and planar extensional flows by deriving an effective extension rate that removes rotational effects, thereby enabling the reconstruction of planar extensional viscosity from steady shear measurements for complex fluids.