Within the Rayleigh-Helmholtz model of active Brownian particles, activity is due to a nonlinear velocity-dependent force. In the presence of external trapping potential or constant force, the steady state of the system breaks detailed balance producing a net entropy. Using molecular dynamics simulations, we obtain the probability distributions of entropy production in these steady states. The ...

We present results from molecular dynamics simulations of a sphere moving down an inclined plane made rough by glueing other spheres to it. The moving sphere experiences an eeective friction force due to collisions with the balls on the plane, and can maintain a steady state with a constant mean velocity for a certain range of inclination angles of the plane. Although the friction force is due ...

Owing to the unified and tunable pore size, two-dimensional graphyne membranes show excellent performance in realm of gas transport separations. The impacts environmental conditions on size a porous membrane are ignored previous studies. Using molecular modeling techniques, we here probe accessible γ-graphyne under various pressure temperature conditions. First, by assessing permeation through ...

We investigated finger strength and the ability to control digit force/torque production in children with developmental coordination disorder (DCD) using manipulative tasks with different kinetic redundancies (KNR). Age-related changes in finger strength and finger force/torque control in typically developing (TD) children were also examined to provide a developmental landscape that allows a co...

Articles you may be interested in Adhesive-free colloidal probes for nanoscale force measurements: Production and characterization Rev. Improved in situ spring constant calibration for colloidal probe atomic force microscopy Rev. Accurate noncontact calibration of colloidal probe sensitivities in atomic force microscopy Rev. A calibration method for lateral forces for use with colloidal probe f...

in this study, a numerical computational fluid dynamics study is conducted in order to predict the aerodynamic forces on the np car. the turbulent air flow around the car is modeled using the realizable k-ε model. first, results are validated against those presented for the ahmed’s body. next, the fluid flow around the car is simulated for different car speeds ( to mph) and flow directions ( to...

The drag force exerted on an object intruding into granular media can depend the object's velocity as well depth penetrated. We report intrusion experiments at constant speed over four orders in magnitude together with systematic molecular dynamics simulations beyond quasi-static regime. find that dependence crosses to a characteristic time after initial impact. This crossover scale, which depe...

Calculations of electrostatic properties of protein-protein complexes are usually done within framework of a model with a certain set of parameters. In this paper we present a comprehensive statistical analysis of the sensitivity of the electrostatic component of binding free energy (DeltaDeltaGel) with respect with different force fields (Charmm, Amber, and OPLS), different values of the inter...