air pollution is one of the major threats to environment in the present time. increase in degree of urbanization is a major cause of this air pollution. due to urbanization, vehicular activities are continuously increasing at a tremendous rate. mobile or vehicular pollution is predominantly degrading the air quality worldwide. thus, air quality management is necessary for dealing with this seve...

the air quality in shiraz was assessed based on a one-week passive sampling campaign.during the first week of the summer 2003, about 400 passive samplers were used in groups of two andthree, so that 187 sampling stations covered all of shiraz. pollutant gases including so2, no2 and btx(benzene, toluene and xylene) were sampled by diffusive sampling tubes. collected samples wereanalyzed and poll...

1 Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588, Iran 2 Department of Physics, Faculty of Sciences, Arak University, Arak 38156-8-8349, Iran 3 Department of Physics, Department of Electrical and Electronics Engineering, and UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, Turkey 4 Luminous! Center of Excellence for...

*Correspondence: [email protected] 1Young Researcher and Elite Club, Arak-Branch, Islamic Azad University, Arak, Iran Full list of author information is available at the end of the article Abstract In this work, partial answers to Reich, Mizoguchi and Takahashi’s and Amini-Harandi’s conjectures are presented via a light version of Caristi’s fixed point theorem. Moreover, we introduce th...

background: contamination of the environment due to heavy metals is a major concern to human life and the environment. this study was conducted to investigate and quantify the copper and zinc concentrations in industrial estates soil in arak, iran. methods: four industrial estates were considered for the experimental design, including arak 1, arak 2, arak 3, and ghotbe sanaati. for preliminary ...

swelling urban populations and increasing number of industry and especially automobiles in and around cities have resulted in adverse effect on human health. one of the most important things regarding air pollution in these days is that the number of motor vehicles has increased, and the resulting problems of new types of air pollution on large scale need to be emphasized in large cities.the gr...

The Arak process is a solvable stochastic process which generates coloured patterns in the plane. Patterns are made up of a variable number of random nonintersecting polygons. We show that the distribution of Arak process states is the Gibbs distribution of its states in thermodynamic equilibrium in the grand canonical ensemble. The sequence of Gibbs distributions form a new model parameterised...