نتایج جستجو برای: square well

تعداد نتایج: 1631892  

Journal: :Physica Scripta 2022

Abstract In this paper, a simple method is proposed to get analytical solutions (or with the help of few numerical calculations) Dirac-Weyl equation for low energy electrons in graphene presence certain electric and magnetic fields. order decouple we have assumed displacement symmetry system along direction some conditions on The resulting equations natural form apply technique supersymmetric q...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده ادبیات و زبانهای خارجی 1394

cohesion is an indispensable linguistic feature in discourse analysis. lexicald such a differe cohesion and conjunction in particular as two crucial elements to textual cohesion and comprehension has been the focus of a wide range of studies up to now. yet the relationship between the open register and cohesive devices has not been thoroughly investigated in discourse studies. this study concen...

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