List of Articles Open Access Article Abstract Page Full-Text 1 - Investigating the Pollution of Radioactive Elements Based on Airborn Radiometric Geophysical Measurements in Goljeh (Zanjan province) Iren Hosseini , Shahram Baikpour Afshar Ziazarifi Open Access Article Abstract Page Full-Text 2 - Investigating The Effects of Rainfall on Chemical Quality of Drinking Water Sources in Northern Fars Cities During 2011-2016 Ali Shabani MohammadHadi Fattahi Open Access Article Abstract Page Full-Text 3 - Investigation of Nano-particle in reduction of polymer adsorption on rock surface during reservoir flooding and reduction of optimum injected polymer concentration toward reservoir with an environmental approach Majid Dastanian Naser Akhlaghi Olghi Seyed Jamal Sheykh Zakariyaee Open Access Article Abstract Page Full-Text 4 - Investigation of Hydro Geochemical Changes in Groundwater Case Study: Hamedan-Bahar Plain Sajad Fazel Tavasol Ali Ahmadi Mostafa Safari Komil Reza Dehghani Open Access Article Abstract Page Full-Text 5 - Preconcentration of trace amounts of Ni(II) in waste water samples Islamshahr using modified Multiwall nano tube carbon Mohammd Yari Ali Moghimi Narges Behzad Ali Yari Mahnaz Qomi Open Access Article Abstract Page Full-Text 6 - Minimization of the deviation from the optimal cut-off grades in long-term production scheduling of open pit mines by using mixed integer programming Ehsan Moosavi Reza Shirinabadi