نتایج جستجو برای: electron density

تعداد نتایج: 685167  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1996

A. Kazemzade, F. Khorasanizadeh, R. Yazdani Rad, S. Safi, Y. Safaei Naeini,

C-SiC composites with carbon-based mesocarbon microbeads (MCMB) preforms are new type of highpreformance and high-temperature structural materials for aerospace applications. In this study MCMB-SiC composites with high density (2.41 g.cm-3) and high bending strength (210 MPa,) was prepared by cold isostatic press of mixed mesophase carbon powder derived from mesophase pitch with different amoun...

Journal: :journal of physical and theoretical chemistry 0
s. kaya - c. kaya -

chemical hardness () and absolute electronegativity () have important applications in chemistry. inthe conceptual density functional theory (dft), these concepts has been associated with electronicenergy and the relationship with ionization energy (i) and electron affinity (a) of these concepts hasbeen given. in this study, graphical method was used in order to see the relationship with the a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1389

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1389

چکیده ندارد.

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2015

Journal: :The Journal of chemical physics 2005
Manoj K Harbola Rajendra R Zope Anjali Kshirsagar Rajeev K Pathak

Electron density and electron momentum density, while independently tractable experimentally, bear no direct connection without going through the many-electron wave function. However, invoking a variant of the constrained-search formulation of density-functional theory, we develop a general scheme (valid for arbitrary external potentials) yielding decent momentum-space properties, starting excl...

Journal: :Journal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation 1963

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