In this work, we prove the existence and uniqueness of a quasi-stationary distribution for hypoelliptic Hamiltonian dynamics system N particles in $${\mathbb {R}}^d$$ interacting with Lennard-Jones type potentials or repulsive Coulomb potentials.

This work presents the modelling fundamentals to study dynamics of inverter-based resources (IBRs) in weak distribution grids and derive disturbance performance characteristics describing how they should behave under different conditions. More specifically, with respect small-signal disturbances we possible voltage violations following frequency response from IBRs due low system strength also p...

serum albumin is the most aboundant protein in blood plasma. its two major roles aremaintaining osmotic pressure and depositing and transporting compounds. in this paper,albumin-methanol solution simulation is carried out by three techniques including montecarlo (mc), molecular dynamic (md) and langevin dynamic (ld) simulations. byinvestigating energy changes by time and temperature (between 27...

human serum albumin (hsa) is the most abundant protein in the blood plasma. drug binding to hsa is crucial to study the absorption, distribution, metabolism, efficiency and bioavailability of drug molecules. in this study, isothermal titration calorimetry and molecular dynamics simulation of hsa and its complex with indometacin (im) were performed to investigate thermodynamics parameters and th...

This paper develops a model of wage distribution and wage dynamics based on assignment and Pareto learning. The model matches a large number of key facts about wage distribution and wage dynamics. The tractability of Pareto learning allows us to derive joint implications on the wage distribution and wage dynamics as assignment becomes more important. Our model also provides a natural framework ...

Ichthyoplankton data provide a base for research into population dynamics of major fishery species. Information on ichthyoplankton ecology forms an important component of stock assessment and fishery management plans. Also, nursery areas are important regions for the recruitment success of fishery stocks and as such, conservation of these areas is a key part of fishery management. Temporal dist...

In de Broglie and Bohm’s pilot-wave theory, as is well known, it is possible to consider alternative particle dynamics while still preserving the |ψ| distribution. I present the analogous result for Nelson’s stochastic theory, thus characterising the most general diffusion processes that preserve the quantum equilibrium distribution, and discuss the analogy with the construction of the dynamics...

We study the dynamics of protein folding via statistical energy-landscape theory. In particular, we concentrate on the local-connectivity case with the folding progress described by the fraction of native conformations. We found that the first passage-time (FPT) distribution undergoes a dynamic transition at a temperature below which the FPT distribution develops a power-law tail, a signature o...

Timber management directly influences the population dynamics of tree species, like Copaifera spp. (copaíba), which provide oil-resin with ecological and economic importance. The aim of this study was to evaluate the structure and population dynamics of Copaifera in unmanaged and managed stands by reduced-impact logging (RIL) in eastern Amazon in Pará state, Brazil. Based on a stem map of the s...

Several classical system dynamics models, such as models of disease spread, and technology adoption, are built under assumption of a homogeneous population. These assumptions have been recently challenged by recent results showing that the degree distributions of many social and natural networks, such as the so-called scale-free networks, exhibit long-tailed degree distributions. This paper ado...