On Wavelet Based Modeling of the Nitrogen Oxides Emission and Concentration due to Road Traffic in Urban Environment
Journal Title: Acta Technica Jaurinensis - Year 2015, Vol 8, Issue 1
Abstract
Differential equations can be solved wavelet-based by representing the continuous functions by their wavelet expansion coefficients and thus the corresponding differential equations are transformed to matrix equations. The wavelet basis functions are organized into resolution levels of different frequency terms at different locations, and the main advantage of the wavelet expansion representation is that the wavelet based differential equation solving methods can be adaptive, it is possible to refine the solution locally, if the precision is not sufficient at some regions.In case of the nitrogen oxides convection-advection equation, the urban environment should be taken as special material parameter in the differential equation's operator, and the matrix elements of the differential operator has to be calculated in a non-continuous environment, and the obstacles are placed so, that they are not at the boundaries of the support of the wavelets.
Authors and Affiliations
Sz. Nagy
Keywords
Related Articles
- EP ID EP630767
- DOI 10.14513/actatechjaur.v8.n1.348
- Views 270
- Downloads 0
Longitudinal Behaviour of Embedded Rails
The longitudinal behaviour of embedded rails significantly differs from that of ballasted and slab track with direct rail fastening. As the ambient temperature rises and falls, rails expand and contract, imposing stresse...
Blockchain Potential in Tilapia Supply Chain in Ghana
In a country like Ghana where Tilapia is the most preferred and cheapest source of animal protein, closer attention must be paid to the supply chain of such a product. This paper examines the major issues and problems in...
Uniaxial Tension of a Filament-wound Composite Tube at Low Temperature
The aim of this article is to model mechanical behavior of a filament-wound, rubber-based composite tube subjected to uniaxial tension at low temperature by test experiments and FE simulations. Uniaxial tensile tests at...
Parallel Numerical Creation of Phase-space Diagrams of Nonlinear Systems Using Maple
In this paper the numerical creation of phase-plane diagrams in parallel utilizing Maple is presented. One of the most effective method for studying nonlinear systems is the creation of detailed enough phase-plane diagra...
Architectural and Structural Design of Free-form Structures – Case Study
This article describes the conceptual design process of an equestrian centre, presenting the covered stadium of the building complex in detail, designed it as a free-form, wide-span steel structure. The main goal of this...