Digital X-ray radiography is widely used in clinical diagnosis. High quality chest conducive to the accurate diagnosis of diseases by clinicians. However, assessment images mainly depends on subjective evaluation doctors, and results are influenced skill level experience evaluators, involving many issues such as heavy workload various uncertain factors judgment. In this paper, we propose a meth...

Assume that Nm(x) denotes the density of the population at a point x at the beginning of the reproductive season in the mth year. We study the following impulsive reaction-diffusion model for any m ∈ Z+  u (m) t = div(A∇u(m) − au(m)) + f(u(m)) for (x, t) ∈ Ω× (0, 1] u(m)(x, 0) = g(Nm(x)) for x ∈ Ω Nm+1(x) := u(m)(x, 1) for x ∈ Ω for functions f, g, a drift a and a diffusion matrix A and Ω ⊂...

Since NOx family, one of the most important causes of air pollution, is the primary source of acid rains, ozone layer depletion, and breathing disorders, mitigation of these pollutants is now a global concern. In the off-gases of internal combustion engines running with oxygen excess, non-thermal plasmas (NTPs) have an oxidative potential, which results in an effective conversion...

Given a finitely connected planar Jordan domain Ω, it is possible to define a divergence distance D(x, y) from x ∈ Ω to y ∈ Ω, which takes into account the complex geometry of the domain. This distance function is based on the concept of f -divergence, a distance measure traditionally used to measure the difference between two probability distributions. The relevant probability distributions in...