Due to inappropriate planning and management, accelerated urban growth and tremendous loss in land, especially cropland, have become a great challenge for sustainable urban development [1]. Detection of such changes may help decision makers and planners to understand the factors in land use and land cover changes in order to take effective and useful measures. Remote sensing and GIS techniques ...

the aim of this study is 3-d inversion of magnetic data acquired from the sorkheh-dizej iron-bearing region in zanjan province, iran, in order to determine the geometrical distribution of the buried magnetic sources. for this purpose, our program discretizes the subsurface region into vertical right rectangular prisms and uses the nonlinear marquardt-levenberg algorithm to optimize the unknown ...

BACKGROUND Growth failure in children less than five years old can lead to the serious complications such as increased mortality, learning difficulties or physical disability. The aim of this study was to investigate the nonorganic factors affecting the growth trend in less than two years children living in Zanjan, Iran. METHODS This longitudinal study was conducted on a sample of 3566 childr...

there are continuous connections between a city and its periphery and the form of these relations varies. collection of these relations makes an influential area forming the various relations between the city and periphery. these relations are not the same and do not have unique concentration and density rather, they hey depend on population, geographic conditions and the role of the city in th...

Mohammad Yaghoub Abdollahzadeh Jamalabadi 1,* ID , Payam Hooshmand 2, Navid Bagheri 3, HamidReza KhakRah 4 ID and Majid Dousti 5 1 Department of Mechanical, Robotics and Energy Engineering, Dongguk University, Seoul 04620, Korea 2 Department of Mechanical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj 6616935391, Iran; [email protected] 3 Department of Energy Engineerin...

A thermohydrodynamic (THD) analysis of turbulent flow in journal bearings is presented based on the computational fluid dynamic (CFD) techniques. The bearing has infinite length and operates under incompressible and steady conditions. In this analysis, the numerical solution of Navier-Stokes equations with the equations governing the kinetic energy of turbulence and the dissipation rate, couple...

A new species of Astragalus is described: Astragalus barnasariformis sp. nov., Maassoumi, F. Ghahrem. & Bagheri. It is endemic to Zanjan province in northwestern Iran. Morphological evidence supports taxonomic placement of the new species in Astragalus sect. Trachycercis. The species appears to be most closely related to A. barnasari Grossh. and A. chalilovii.

mrs method is one of the new geophysical methods that directly detects the groundwater. by using this method, one can determines some parameters of aquifer (porosity, permeability and transmissivity). the purpose of this research is the application of mrs method in the conductive ground. combination of mrs and rs method is used for better detection of the aquifer in the region of abyek located ...

Pregnancy Outcomes in Pregnant Women with Symptoms of Covid-19 Admitted to Ayatollah Mousavi Hospital Zanjan 2019-2020