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Articles by F. Sharifi
Total Records ( 2 ) for F. Sharifi
  F. Sharifi , G.H. Shahidi Bonjar , S. Shafii Bafti , B. Barkhordar , S. Aghighi and M.J. Mahdavi
  Streptomyces sp. are of the most attractive sources of biologically active compounds. In the recent decades, they have attracted high interests as biocontrol agents. In search of finding such principles, in vitro suppression of Alternaria solani was studied by use of Streptomyces antagonists. A. solani was sensitive to several species mainly Streptomyces plicatus, S. olivaceus and two unidentified actinomycetes. Activity versus time was monitored in S. olivaceus in solid and shaked cultures. Ongoing goals of this research include isolation, characterization and identification of the active metabolites. Future goals include identification of active genes for use in development of recombinant DNAs in transgenic hosts bearing elevated resistance to infections by Alternaria sp.
  H. Zarrin , F. Sharifi , M. Vafakhah and M.H. Mahdian
  In this research, to evaluating of low flow from data of 28 hygrometry stations of Karkheh and Karoon basin, were analyzed and then flow duration curve was drew and discharge of parameters includes Q75%, Q90%, Q92%, Q95% and Q99% were calculated. Toward nomination of effective factors on low flow 21 parameters was detected such as physiographic, hydro climatic and geomorphologic, with geographic information system. With principal components analysis method we chose components which has less correlation. This component in regard of their importance include: weighted average slop of catchment, area, average elevation of catchment, compactness coefficient and slop of main channel which illustrate 80.5% of variation of data. In continue regional analysis with multivariate regression to establish relations between low flow and catchment’s characteristics. Finally regard to comparing and assessment the accuracy of estimating methods, we used 9 control stations data and then we compared the amount of discharge of low flow-on the base of-achieved models with the amounts of control stations and finally the results shown that obtained models in this area were significant (at 99% level).
 
 
 
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