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Structural, Electronic, Vibrational, and Topological Analysis of Single-Walled Zinc Oxide Nanotubes
(2016-03-31)
Single-walled armchair and zigzag ZnO nanotubes (SWZnONTs) have been studied via periodic computational simulations based on density functional theory with the B3LYP, HSE06, PBE0, and PWGGA functional and all-electron basis ...
Structure and Vibrational Properties of Potassium-Promoted Tungsten Oxide Catalyst Monomeric Sites Supported on Alumina (K2O/WO3/Al2O3) Characterized Using Periodic Density Functional Theory
(American Chemical Society, 2018-10)
Al2O3-supported tungsten oxide catalysts have been instrumental in many industrially relevant reactions and their reactivity is controlled by their molecular structure. In turn, their molecular structure has primarily been ...
Effect of the vibration profile on shallow granular systems
(Royal Soc., 2015)
We describe the collective behaviour of a system of many inelastic spherical particles inside a box which is being periodically vibrated. The box is shallow, with large horizontal dimensions, while the height is less than ...
Hydrostatic and [001] uniaxial pressure on anatase TiO2 by periodic B3LYP-D* calculations
(2013-04-11)
The effect of high hydrostatic and [001] uniaxial pressures on TiO 2 anatase was studied under the framework of periodic calculations with the inclusion of DFT-D2 dispersion potential adjusted for this system (B3LYP-D*). ...
Hydrostatic and [001] uniaxial pressure on anatase TiO2 by periodic B3LYP-D* calculations
(2013-04-11)
The effect of high hydrostatic and [001] uniaxial pressures on TiO 2 anatase was studied under the framework of periodic calculations with the inclusion of DFT-D2 dispersion potential adjusted for this system (B3LYP-D*). ...
Utilização de material com características periódicas para redução de vibrações em rotor embarcadoVibration control of onboard rotors using periodic materials
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Mecânica, 2021)
On the dynamics behavior and a control design to a nonlinear 2-DOF vibrating gyroscopic-MEMS model
(2011-12-01)
In this paper, we deal with the nonlinear dynamics, the transfer of energy and control of the vibrations of a Micro Electro-mechanical System (MEMS) gyroscope. The MEMS are micro-transducers whose operation is based on ...
Mate searching in Ennya maculicornis (Membracidae: Polyglyptini) initiated by females: behavioural and acoustic descriptions
(Blackwell Publishing Ltd, 2019)
1. In treehoppers in which courtship has been studied, males initiate the search for females by periodically emitting a vibrational signal. The responses by the female are used by males as a beacon and give rise to a duet. ...
Projeto de controladores para a maximização de sistemas de captação de energia considerando excitação não ideal
(Universidade Estadual Paulista (Unesp), 2015-02-27)
Harvesting systems harness the energy from the environment such as solar, thermal, electromagnetic and vibrational. Many projects of vibration energy harvesting systems use harmonic excitation in resonance with the system ...
Revisão da efetividade da análise de vibrações para diagnóstico preditivo de falhas de equipamento em Indústria Química
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosEngenharia Elétrica - EE, 2022-09-23)
In the 4.0 industry, it's common the presence of technological solutions to predict equipment failures. The vibration analysis is used in the predictive maintenance area, and can can be applied to diagnose failures in the ...