نتایج جستجو برای: 45 and 60 c
تعداد نتایج: 17025290 فیلتر نتایج به سال:
Drug stocks in pharmacies are important information for the sales process. The existing stock is not accordance with needs of consumers, distribution drugs that less needed will cause losses because drug has expired due to too long stored warehouse. Another problem obat cannot predict a lot, overcome these problems prediction system. These can be solved by decision tree method supplies. concept...
this thesis basically deals with the well-known notion of the bear-invariant of groups, which is the generalization of the schur multiplier of groups. in chapter two, section 2.1, we present an explicit formula for the bear-invariant of a direct product of cyclic groups with respect to nc, c>1. also in section 2.2, we caculate the baer-invatiant of a nilpotent product of cyclic groups wuth resp...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
The character of the bond between encapsulated atoms and the enclosing C6o shell in M@C6o endohedral complexes is revisited using the density functional formalism. Mulliken population analysis indicates that this bond is strongly ionic in the case of K@C6o , predominantly covalent in the case of O@C60, and has a mixed ionic and covalent character for Li@C60. In all these cases, van der Waals fo...
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