modern research physics

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in the present Research, in order to access new technologies eliminate radioactive contamination have been carried out . The construction and use of exchange resins with high efficiency and efficacy , as a new approach in research and practical method of separation is introduced. This project is one of the most important pieces of 137Cs radioactive decontamination nuclear fission , two new composite entitled as CER.M-PAN ( cerium molybdate - poly acrylonitrile ) and HCFC-PAN ( Cu Hegzacyanoferrat II- poly acrylonitrile ) was prepared their performance was evaluated in terms of continuous and discontinuous . To identify the structure of the synthesized compound , infrared spectroscopy techniques were used. Surface Area and Porosity of adsorbent beads were assayed . In order to increase the efficiency of these two composites , combining them with the PAN were prepared and their stability in different environmental conditions assessed and evaluated . ‌ The results suggest that the same efficiency than HCFC-PAN composite composite is CER.M-PAN .

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Total streamflow on karstic watershed comprises tow main components in which total baseflow and direct runoff. The former components include groundwater discharge basically. The later component, the direct runoff component, consists of surface runoff resulted from precipitation. Separation of main components of total streamflow on karstic watershed has been performed by "HYSEP" software on bases of Zayandeh-Roud daily streamflow data for 15 Iranian calendar years from 1360-1361 to 1374-1375 water year as a case study. This software employs three methods to compute values of above-mentioned main components separate by fixed interval method, sliding interval method and local minimum method. Comparison of results for above methods obviously shows a good agreement. So the difference of long term results (15 years) for total baseflow is always less than 2.7 %.