نتایج جستجو برای: source apportionment

تعداد نتایج: 419288  

Journal: :International Journal of Environmental Research and Public Health 2020

Journal: :global journal of environmental science and management 0
s. afshar department of civil engineering, science and research branch, islamic azad university, tehran, iran b. saghafian department of civil engineering, science and research branch, islamic azad university, tehran, iran h.r. vosoughifar department of civil engineering, islamic azad university, tehran south branch, tehran, iran

the present study was carried out to determine the possible origins of sediments entering taleghan dam in northern part of iran, in order to avoid further sedimentation and helping in extension of the useful life of the proposed dam. this was performed by xrd analysis. to do so, first of all, sediment sampling points were positioned along the taleghan river. the collected samples, after coding,...

2008
Thomas Eichner Marco Runkel

Using a general multi-country equilibrium model with a multinational enterprise, this paper investigates the efficiency properties of separate accounting and formula apportionment. If governments are large, i.e. take into account the effect of their statutory tax rate on the interest rate, and maximize tax revenues, tax rates under separate accounting may be inefficiently high while tax rates u...

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