This paper presents the influence of Hybrane H 1500 as a hyperbranched polymer on kinetic parameters of dyeing compounded fiber grade PET polyethylene terephthalate at boil temperature. C.I. Disperse Red 324 as a disperse dye was used for dyeing compounded fiber grade PET. The result was compared with corresponding properties of virgin PET. The dyeing rate constants and diffusion coefficients a...

the gold mineralization in kurdistan province of iran was classified as shear zone gold type by some of the researchers. in the current study, the geochemical samples collected from the secondary environment, stream sediments, at the sw of saqquez area were used to investigate the geochemical characteristics of the gold mineralized zones in this environment. the multi-variant statistical analys...

The present analysis deals with the dispersion characteristics of blood described as HerschelBulkley fluid in capillary with permeable walls for fluid and impermeable for the nanoparticles. The contribution of molecular and convective diffusion is recalled from the Taylor and Aris coefficient of diffusion. The effective longitudinal diffusion depends on three parameters namely rheological param...

Lattice Boltzmann Methods (LBMs) are relatively new and have not yet been widely applied to ground-water systems. LBMs are particularly attractive for numerical modeling of flow and solute transport in karst aquifers because they are able to: • Simulate inertial flows • Incorporate complex wall and conduit geometries • Solve adjacent Darcian and Navier-Stokes flow regimes • Solve the appropriat...

We develop an equilibrium directed search model of the labor market where workers can simultaneously apply for multiple jobs. Our main theoretical contribution is to integrate the portfolio choice problem faced by workers into an equilibrium framework. All equilibria of our model exhibit wage dispersion. Consistent with stylized facts, the density of wages is decreasing and higher wage firms re...

A selection of illustrative examples is used in reviewing wind tunnel and water tank modelling of atmospheric dispersion, the aim being to discuss cases where the laboratory work has been a key factor in developing scientific understanding and instigating further research. The areas included are: basic dispersion processes, plume rise, buildings effects, urban areas, dense gas dispersion, conce...

In the developing process of urbanization in China, PM2.5 pollution has become a problem that must be faced. Greenway, especially those in the community, is the important green infrastructure to improve ecological environment in urban areas, which plays a crucial role in PM2.5 reduction. With basic cognitive analysis on definitions and characteristics of community greenway and PM2.5, this paper...

This paper presents computational simulations of atmospheric dispersion experiments conducted around isolated obstacles in the field. The computational tool used for the simulations was the code ADREA-HF, which was especially developed for the simulation of the dispersion of positively or negatively buoyant gases in complicated geometries. The field experiments simulated involve a single cylind...

This paper develops a series of simple heterogeneous-agents economies in order to study the welfare implications of labor market inequality. We perform two types of welfare calculations. First we compute the welfare cost of a rise in labor market risk, given a particular asset market structure (complete markets, incomplete markets, autarky). Second, we compute the expected gain from completing ...

INTRODUCTION The objective of this study is the evaluation of model sensitivity due to grid size and resolution variation in complex terrain by the design of a screening experiment. Grid calibration, that in many cases involves the removal of complexities and insignificant terms, is the starting point in reducing meteorologically affected factors of uncertainty before any pollution predictions ...