نتایج جستجو برای: electronic properties

تعداد نتایج: 1062855  

Journal: :iranian red crescent medical journal 0
ali asghar karimi iran university of medical sciences, tehran, ir iran behafarid ghalandari department of medical nanotechnology, science and research branch, islamic azad univerity, tehran, ir iran seyed saleh tabatabaie department of ent-head and neck surgery, ent-head and neck surgery research center, rasool akram hospital, iran university of medical sciences, tehran, ir iran; department of ent-head and neck surgery, ent-head and neck surgery research center, rasool akram hospital, iran university of medical sciences, tehran , ir iran. tel: +98-2166504294, fax: +98-2166525329 mohammad farhadi department of ent-head and neck surgery, ent-head and neck surgery research center, rasool akram hospital, iran university of medical sciences, tehran, ir iran

conclusions consequently, small diameter scnt interaction with nucleic acid bases is noncovalent. also, the results revealed that small diameter scnt interaction especially scnt (4, 4) with nucleic acid bases can be useful in practical application area of biomedical fields such detection and drug delivery. objectives hence, the quantum mechanics (qm) method based on ab initio was used for this ...

 First principle calculations of nanolayered ZnO polymorphs (Wurzite–, Zincblende–, Rocksalt–structures) in the scheme of density functional theory were performedwith the help of full potential linear augmented plane wave (FP-LAPW) method. Theexchange - correlation potential is described by generalized gradient approximation asproposed by Perdew–Burke–Ernzrhof (GGA–PBE) and modified Becke–Johns...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

in the present work, the structural and electronic properties, and conductivity of (5,5) and (6,6) single walled carbon nanotubes in the ground state have done by using the hartree-fock and density functional theory dft-b3lyp/6-31g* level. delocalization of charge density between the bonding or lone pair and antibonding orbitals calculated by nbo (natural bond orbital) analysis. these methods a...

Journal: :journal of sciences islamic republic of iran 0

based on the crystal and magnetic structural properties of some gd intermetallic compounds, it is shown that with increasing conduction electron concentration, gd experiences electronic and magnetic instability, and that these behaviors point to the appearance of kondo lattice. we suggest that the conduction electrons have gained local character. it is shown that kondo effect should be observed...

We describe how to obtain electronic transport properties of disordered graphene, including the tight binding model and nearest neighbor hopping. We present a new method for computing, electronic transport wave function and Greens function of the disordered Graphene. In this method, based on the small rectangular approximation, break up the potential barriers in to small parts. Then using the f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

Journal: :Advances in colloid and interface science 2012
Derrick M Mott Dao Thi Ngoc Anh Prerna Singh Cheshta Shankar Shinya Maenosono

This review article presents the collected recent findings and advancements in understanding and manipulating the electronic properties of the Au/Ag NP system from the standpoint of controlling the characteristics of heterostructured core-shell NPs. The discovery of the electronic transfer effect through analysis of both Ag-Au and Au-Ag type NPs inspired the analysis of the resulting enhanced p...

Journal: :International Journal of Modern Physics B 1999

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