We study a singular-limit problem arising in the modelling of chemical reactions. At finite ε > 0, the system is described by a Fokker-Planck convection-diffusion equation with a double-well convection potential. This potential is scaled by 1/ε, and in the limit ε→ 0, the solution concentrates onto the two wells, resulting into a limiting system that is a pair of ordinary differential equations...

Objective: Irritable Bowel Syndrome (IBS) is a chronic, disabling, and functional disorder of the gastrointestinal tract in the absence of identifiable structural disorder. The present study aimed to investigate the relationship between sensory processing sensitivity and life style with perceived stress considering mediating role of duration of syndrome in patients with IBS using structural equ...

OBJECTIVE The Metacognitions Questionnaire 30 assesses metacognitive beliefs and processes which are central to the metacognitive model of emotional disorder. As recent studies have begun to explore the utility of this model for understanding emotional distress after cancer diagnosis, it is important also to assess the validity of the Metacognitions Questionnaire 30 for use in cancer population...

Structural equation models can be seen as an extension of Gaussian belief networks to cyclic graphs, and we show they can be understood generatively as the model for the joint distribution of long term average equilibrium activity of Gaussian dynamic belief networks. Most use of structural equation models in fMRI involves postulating a particular structure and comparing learnt parameters across...

this paper peresents a mathematical model for the thin layer drying of the viliamz cultivar of soybean. the thin layer drying behaviour of soybean was experimentally investigated and the mathematical modelling performed by using thin layer drying models provided in the literature. experiments were conducted at inlet drying air temperatures of 30, 40, 50, 60 and 70ºc and at a fixed drying air ve...

The SNE special issues on Object-oriented and Structural-dynamic Modelling and Simulation emphasize on recent developments in languages and tools for object-oriented modelling of complex systems and on approaches, languages and tools for structural-dynamic systems. Computer aided modelling and simulation of complex systems , using components from multiple application domains, have in recent yea...

In this paper, the effect of mathematical representation method of an MR damper on the performance of control algorithm is investigated. The most exact and common Maxwel Nonlinear Slider (MNS) and modified Bouc-Wen hysteretic models are employed through a nonlinear  comparatve numerical study. In many of semi-active control algorithms, a mathematical modelling method is required for determinig ...