Search results for "Nori"

Efficient Approach for Simulating Distorted Materials

2010

The operation principles of nanoscale devices are based upon both electronic and mechanical properties of materials. Because these properties can be coupled, they need to be investigated simultaneously. At this moment, however, the electronic structure calculations with custom-made long-range mechanical distortions are impossible, or expensive at best. Here we present a unified formalism to solve exactly the electronic structures of nanomaterials with versatile distortions. We illustrate the formalism by investigating twisted armchair graphene nanoribbons with the least possible number of atoms. Apart from enabling versatile material distortions, the formalism is capable of reducing computa…

Graphene nanoribbons subject to gentle bends

2012

Since graphene nanoribbons are thin and flimsy, they need support. Support gives firm ground for applications, and adhesion holds ribbons flat, although not necessarily straight: ribbons with high aspect ratio are prone to bend. The effects of bending on ribbons' electronic properties, however, are unknown. Therefore, this article examines the electromechanics of planar and gently bent graphene nanoribbons. Simulations with density-functional tight-binding and revised periodic boundary conditions show that gentle bends in armchair ribbons can cause significant widening or narrowing of energy gaps. Moreover, in zigzag ribbons sizeable energy gaps can be opened due to axial symmetry breaking,…

Twisting graphene nanoribbons into carbon nanotubes

2011

Although carbon nanotubes consist of honeycomb carbon, they have never been fabricated from graphene directly. Here, it is shown by quantum molecular-dynamics simulations and classical continuum-elasticity modeling, that graphene nanoribbons can, indeed, be transformed into carbon nanotubes by means of twisting. The chiralities of the tubes thus fabricated can be not only predicted but also externally controlled. This twisting route is an opportunity for nanofabrication, and is easily generalizable to ribbons made of other planar nanomaterials.

Copper(II)–Thymine Coordination Polymer Nanoribbons as Potential Oligonucleotide Nanocarriers

2016

This is the peer reviewed version of the following article: Vegas, V. G., Lorca, R., Latorre, A., Hassanein, K., Gómez‐García, C. J., Castillo, O., ... & Amo‐Ochoa, P. (2017). Copper (II)–Thymine Coordination Polymer Nanoribbons as Potential Oligonucleotide Nanocarriers. Angewandte Chemie International Edition, 56(4), 987-991, which has been published in final form at https://doi.org/10.1002/anie.201609031. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions

Signorini problem with Coulomb's law of friction. Shape optimization in contact problems

1992

Crònica del congrés 'Proscrits, marginats i minories a la Corona d'Aragó (ss. XV-XVIII). Textos i vides (Universitat de València, 15 d'octubre de 202…

2022

El 15 d'octubre de 2020 tingué lloc, a la Facultat de Filologia, Traducció i Comunicació de la Universitat de València, un congrés internacional online sobre el tema 'Proscrits, marginats i minories a la Corona d'Aragó (ss. XV-XVIII). Textos i vides', que fou organitzat pels membres del projecte d'investigació titulat 'Biografías marginales: violencia, sexo, género e identidad. Edición y análisis de las fuentes documentales valencianas de la época foral', amb la intenció d'aplegar informació i notícies al voltant del que podríem qualificar com a 'veus silenciades': individus i col·lectius que, per diferents motius, varen ser ocultats o minoritzats pels relats polítics, administratius, liter…

Fallece a los 82 años el sociólogo Vidal-Beneyto

2010

Lucidez intelectual

2010

José Vidal Beneyto, europeísta carcaixentí

2010

Language practices and attitudes among young minority language speakers in Thailand

2020

Language practices and attitudes among young minority language speakers in Thailand, focusing on the Kui language, are examined. Sociolinguistic data obtained from three months of fieldwork in the ...