A new explanation for the evolution of particles near a roadway is proposed. The explanation starts with data that suggest that small (<15 nm) liquid nanoparticles shed semivolatile organics (<C24) almost immediately upon emission. It is shown here that the shrinking of these particles enhances their rates of coagulation by over an order of magnitude, and this appears important in helping to ex...

In this paper, we propose a fusion of PSO-ABC algorithm based on the research of particle swarm optimization (PSO) algorithm and artificial bee colony (ABC). The former is apt to trap in local optimum, while the later has great ability of global searching and lower convergence speed in the later evolution process. Using the evolution of artificial swam, we gained a global optimum which was appl...

We present novel multilevel particle methods with extended adaptivity in areas where increased resolution is required. We present two complementary approaches as inspired by r-adaptivity and adaptive mesh refinement (AMR) concepts introduced in finite difference and finite element schemes. For the r-adaptivity a new class of particle based mapping functions is introduced while the particle-AMR ...

the vast use of linear prediction coefficients (lpc) in speech processing systems has intensified the importance of their accurate computation. this paper is concerned with computing lpc coefficients using evolutionary algorithms: genetic algorithm (ga), particle swarm optimization (pso), dif-ferential evolution (de) and particle swarm optimization with differentially perturbed velocity (pso-dv...

rainfall-runoff modeling is most important component in the water resource management of river basins. the successful application of a conceptual rainfall-runoff model depends on how well it is calibrated. the degree of difficulty in solving the global optimization method is generally dependent on the dimensionality of the model and certain of the characteristics of object function. the purpose...

The equations for spin evolution of a particle in a storage ring are obtained considering contributions from the tensor electric and magnetic polarizabilities of the particle along with the contributions from spin rotation and birefringence effect in polarized matter of an internal target. Study of the spin rotation and birefringence effects for a particle in a high energy storage ring provides...

the synthesis of nb doped batio3 has been investigated under microwave-hydrothermal (mh) conditions in the temperature of 150°c for only 2 h using c16h36o4ti, bah2o2.8h2o and nbcl5 as ba, ti and  nb sources, respectively.  typical experiments performed on mh processing have not yet reported for nb doped batio3.  in the mh process, the formation of high purity nano tetragonal nb-batio3 was stron...

Currently, the researchers have made a lot of hybrid particle swarm algorithm in order to solve the shortcomings that the Particle Swarm Algorithms is easy to converge to local extremum, these algorithms declare that there has been better than the standard particle swarm. This study selects three kinds of representative hybrid particle swarm optimizations (differential evolution particle swarm ...

A simple model for motion of dust particle (meteoroid) under the action of (solar) electromagnetic radiation is presented. The particle of the form of plane mirror is taken into account and exact analytical results are presented. As for long-term orbital evolution, particle may spiral outwards the central body (Sun); initial conditions are important. As a consequence, motion of real dust partic...

Intr oduc tion A. A brief cosmological revI. ew B. Organization of the paper Particle Concentrations in the Hot Universe Bounds on the Number of Light Particle Species Light Particle Masses Quenching and Contemporary Concentrations of Heavy Stable Particles Heavy Lepton Masses Unstable Leptons. Limits on Their Mass and/or Lifetime A. The total energy density in the universe B. The spectrum of c...