A method based on a statistical approach of estimating uncertainty in simulating the transport and dispersion of atmospheric pollutants is developed using observations and modeling results from a tracer experiment in the complex terrain of the southwestern USA. The method takes into account the compensating nature of the error components by representing all terms, except dispersion error and va...

In many real-world systems incoming tasks split into subtasks which are processed by a set of parallel servers. In such systems two metrics are of potential interest: response time and subtask dispersion. Previous research has been focused on the minimisation of one, but not both, of these metrics. In particular, in our previous work, we showed how the processing of selected subtasks can be del...

Based on reviews of modelling techniques and data from flash fire field trials, models for the prediction of the burn area of a flammable cloud (in terms of fraction of mean LFL of the cloud), flame speed through the cloud and heat transfer from the flash fire have been produced. The validity of the typical assumptions used in the modelling of flash fires has been tested through comparison agai...

carcinogen-DNA adducts and/or carcinogens which have re cently been developed in several laboratories. Such techniques involve determination of the presence in human tissues and cells, and in body fluids, of carcinogens and carcinogen-DNA adducts. The availability of individual, as opposed to group, measure ments of human exposure to a potential carcinogen may prove critical for establishing a ...

−− A simplified approach is presented to the transient atmospheric dispersion of accidental releases of natural gas, originated by leakages in pressurized ducts on sea level. In this scenario, shutoff valves are used for instantaneous shutdown of tube operation, isolating the harmful inventory, whose transient release is simulated providing estimations of gas instantaneous atmospheric concentra...

We develop an overlapping-generations model with human capital accumulation and endogenous fertility containing a pollution externality. In such a framework, we study the effects of an environmental policy change on individuals’ quality-quantity trade-off on children. In a Malthusian poverty trap, we show that a more stringent policy induces a reduction of the fertility rate. In a state of perp...

Atmospheric processes affecting air quality are very complicated, and scientific understanding of these processes has been evolving rapidly. To successfully simulate concentration levels and changes of atmospheric pollutants, it is highly desirable to have air quality models with full and flexible modularity at the science process level. Such a modular air quality model would significantly enha...

Phase gratings have become popular as local oscillator beam multiplexers for array receivers in the submillimeter wavelength domain. In general, binary or multilevel gratings, also known as Dammann gratings, are used [1][2][3][4]. Dammann gratings can be designed and manufactured easily and perform satisfactorily for most one{dimensional applications. Two{dimensional dispersion, however, is muc...

Estimating the future state of air quality associated with transport policies and infrastructure investments is key to the development of meaningful transportation and planning decisions. This paper describes the design of an integrated transportation and air quality modelling framework capable of simulating traffic emissions and air pollution at a refined spatio-temporal scale. For this purpos...

This paper presents Bingham-NODDI, a clinically-feasible technique for estimating the anisotropic orientation dispersion of neurites. Direct quantification of neurite morphology on clinical scanners was recently realised by a diffusion MRI technique known as neurite orientation dispersion and density imaging (NODDI). However in its current form NODDI cannot estimate anisotropic orientation disp...