نتایج جستجو برای: pollutant

تعداد نتایج: 20272  

Journal: :JNW 2013
Yuyu Li Bo Huang

In this paper, a pollution regulation game model under multiple principal-agent among government, pollutant treatment enterprise and Small and Medium Enterprises (SMEs) is developed to study the pollution regulation mechanism under centralized treatment mode. The optimal regulation mechanism is obtained through theoretic and numeric analysis. It is found that with the supervision costs on pollu...

2014
S. Cakmak C. Hebbern

Pollution levels and the effect of air pollution on human health can be modified by synoptic weather type and aeroallergens. We investigated the effect modification of aeroallergens on the association between CO, O3, NO2, SO2, PM10 and PM2.5 and asthma hospitalisation rates in seven synoptic weather types using single air pollutant models, adjusted for the effect of aeroallergens and stratified...

2010
T. Chinyoka O. D. Makinde

This paper focuses on the transient analysis of nonlinear dispersion of a pollutant ejected by an external source into a laminar flow of an incompressible fluid in a channel. The influence of density variation with pollutant concentration is approximated according to the Boussinesq approximation, and the nonlinear governing equations of momentum and pollutant concentration are obtained. The pro...

2016
Ali Ibrahim

............................................................................................................................. v LIST OF FIGURES ................................................................................................................. ix LIST OF ABBREVIATIONS .................................................................................................. xi CHAPTER 1: I...

2001
M. Cossentino F. M. Raimondi M. C. Vitale

In this paper we illustrate a forecast method of atmospheric pollution critical events caused by particulate matter (specifically PM10) based upon the application of Bayesian networks. These Bayesian networks model the temporal series of the pollutant during the day and the influence that meteorological parameters have upon them. Each network has received some evidences (coming from historical ...

2017
Nathan Cooper Donna Green Katrin J. Meissner

Publically accessible pollution databases, such as the Australian National Pollutant Inventory, contain information on chemical emissions released by industrial facility and diffuse sources. They are meant to enable public scrutiny of industrial activity, which in turn, is meant to lead to industries reducing their pollution. In Australia, however, concerns have been consistently raised that th...

1998
Jean-Daniel M. Saphores

Using real options, we analyze the timing of implementing emission limits for a decaying pollutant when random environmental effects affect its stock. Two types of irreversibility are present: the first type results from long-term environmental damage, and the second from sunk costs in pollution abatement. We assume that social damage from pollution is a power function of the stock of pollutant...

2007
Calin Ioan Anghel Alexandru Ozunu

Based only on current pollutant measured concentrations and atmospheric parameters the paper presents a novel procedure able to predict pollutant emission concentrations and to estimate the risk of pollution. Instead of deterministic or probabilistic methods, cumbersome regression analysis or physical models, a minimax decision procedure based on support vector machine in a minimax approach imp...

2015
Trong Nhan Nguyen Thanh Chuyen Nguyen Thinh Nguyen

In this study, a three-dimensional numerical simulation of the wind flow and pollutant transport in street canyons is carried out by a new specific solver, which is developed and coupled into an open source CFD tool box, the OpenFOAM package. The new model has been applied to study the effect of roof shapes and building heights on the flow patterns and pollutant transports in the street canyons...

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