نتایج جستجو برای: optical spectra

تعداد نتایج: 362167  

Journal: Nanochemistry Research 2018

In the present work, ZnO - SiO2 and Bi2O3– CuO nanocomposites have been prepared by sol gel with alternate precursors existing in literature. They are characterised by XRD, SEM,UV, FTIR and photoluminescence  spectra .The XRD results indicate a crystallite size of  approximately 80 nm for both nanocomposites. SEM image shows a heterogeneous particle size for bot...

Journal: :Journal of Physics: Conference Series 2017

Journal: :Monthly Notices of the Royal Astronomical Society 2017

Journal: :The Astronomical Journal 2013

Journal: :Optics letters 2001
J Qu H Chang S Xiong

We describe an optical processing method for characterizing tissue pathology that is based on principal-component analysis of light-induced autofluorescence. A set of optical spectral filters, which are related to the principal-component loading vectors, is designed to process the autofluorescence signal optically and to generate principal-component scores from the autofluorescence spectra. The...

Journal: :Nanoscale 2011
Min Wang Chang Ming Li

First-principle density functional theory calculations with quasiparticle corrections and many body effects are performed to study the electronic and optical properties of armchair graphene nanoribbons (AGNRs) with variant edges saturated by hydrogen atoms. The "effective width" method associated with the reported AGNR family effect is introduced to understand the electronic structures. The met...

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