Both nonlinear effects and dispersion are important factors that affect the transmission of optical pulses in fibres. In anomalous region, mutual balance can achieve soliton transmission. Starting from Schrodinger equation pulse, under condition ignoring dispersion, phase shift frequency chirp Gaussian pulse effect self-phase modulation (SPM) derived simulated; numerical simulation SPM spectrum...

The aim of this study was to test the efficacy of a mood-induction procedure in a Virtual Reality (VR-MIP) environment for inducing relaxation and generating sense of presence, and to test whether the stimulation of the senses of touch and smell improves the efficacy of this VR-MIP. A controlled study was carried out with four experimental conditions. All of them included the VRMIP to induce re...

Feeling deeply connected to yourself and your body creates a richer experience of presence in a virtual world, even when your body is sitting in a chair wearing VR googles. We call this embodied presence. Connection to the self and body (paying attention to present-moment sensations and feelings) enhances the sense of self and the sense of presence, regardless of whether you are in the natural ...

Virtual reality systems have reached a certain level of maturity in terms of visual and aural quality, but the sense of presence also requires believably behaving environment. A new field of adding intelligence into virtual environments is emerging. We describe shortly the field of virtual reality, and how AI can be applied there. We outline the possibilities of using AI to enhance existing app...

The present paper is a review of the role of individual factors in Spatial Presence. If Spatial Presence is a subjective mental phenomenon psychological factors must have an important role on it. Our review shows that, even though many authors claim about the need for a better understanding about this relation, empirical evidence is still very limited. Personality-related factors as absorption,...

We study the stability and interactions of chirped solitary pulses in a system of nonlinearly coupled cubic Ginzburg-Landau (CGL) equations with a group-velocity mismatch between them, where each CGL equation is stabilized by linearly coupling it to an additional linear dissipative equation. In the context of nonlinear fiber optics, the model describes transmission and collisions of pulses at d...