نتایج جستجو برای: shape mesoporous ncsm

تعداد نتایج: 200293  

2006
Bruce R. Barrett Ionel Stetcu Petr Navrátil

No-core shell model (NCSM) calculations using ab initio effective interactions are very successful in reproducing experimental nuclear spectra. The main theoretical approach is the use of effective operators, which include correlations left out by the truncation of the model space to a numerically tractable size. We review recent applications of the effective operator approach, within a NCSM fr...

2014
Dawei Su Xiuqiang Xie Paul Munroe Shixue Dou Guoxiu Wang

Mesoporous Co3O4 nanoplates were successfully prepared by the conversion of hexagonal β-Co(OH)2 nanoplates. TEM, HRTEM and N2 sorption analysis confirmed the facet crystal structure and inner mesoporous architecture. When applied as anode materials for lithium storage in lithium ion batteries, mesoporous Co3O4 nanocrystals delivered a high specific capacity. At 10 C current rate, as-prepared me...

2001
N. G. Deshpande Xiao - Gang He

It has been shown recently that the triple neutral gauge boson couplings are not uniquely determined in noncommutative extension of the Standard Model (NCSM). Depending on specific schemes used, the couplings are different and may even be zero. To distinguish different realizations of the NCSM, additional information either from theoretical or experimental considerations is needed. In this pape...

2001
Dongyuan Zhao Peidong Yang Qisheng Huo Bradley F Chmelka D Stucky

Major advances in the field of ordered mesoporous materials have been achieved in topological structure definition at the meso phase, and macroscale levels (shape and morphology) using molecular control during mesoporous materials synthesis. Examples include the use of block copolymers for the preparation of mesoporous materials with large pore sizes (> 30 nm), the formation of mesoporous silic...

2015
James Rondinelli

Final Report: Ab initio design of noncentrosymmetric metals: crystal engineering in oxide heterostructures Report Title The program used electronic structure based methods to design noncentrosymmetric metals (NCSM) in transitional metal oxides. The report describes the progress made towards understanding why any NCS metals should exist, how to find them, and the physical properties of these mat...

Journal: :The European Physical Journal A 2005

Journal: :Nanoscale 2012
Paula C Angelomé Isabel Pastoriza-Santos Jorge Pérez-Juste Benito Rodríguez-González Andrés Zelcer Galo J A A Soler-Illia Luis M Liz-Marzán

Composite materials made of mesoporous oxide thin films containing metallic nanoparticles are of high interest in various fields, including catalysis, biosensing and non-linear optics. We demonstrate in this work the fabrication of such composite materials containing a sub-monolayer of gold nanoparticles (GNPs) of various shapes covered with mesoporous silica thin films. Additionally, the shape...

2007
Zhen Zhou Georgy Gimel’farb John Morris Patrice Delmas

We describe a new version of the two-stage noisedriven concurrent stereo matching (NCSM) algorithm that uses symmetric dynamic programming stereo (SDPS) to estimate image noise and build candidate volumes for placing goal surfaces. In contrast to the initial NCSM, SDPS is first applied successively in xand y-directions in order to obtain a more stable disparity map from points that coincide in ...

2010
P. Cheyssac A. ten Bosch

Mesoporous materials are characterized by the density of empty or filled pores which modulates their properties, in particular, optical properties. Although pores scatter light, the scattered energy or reflectance spectra of a mesoporous layer show a behaviour that can be attributed mainly to interference created by the interfaces; however, coherent scattering is still present inside the mesopo...

Journal: :Nanoscale 2014
Jiwhan Kim Youn-Sang Bae Hyunjoo Lee

It is difficult to deposit shape-controlled nanoparticles into a mesoporous framework while preserving the shape. For shaped platinum nanoparticles, which are typically 5-10 nm in size, capillary inclusion by sonication or the formation of a mesoporous framework around the shaped platinum nanoparticles has been attempted, but the nanoparticles aggregated or their shapes were degraded easily. In...

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