Results 31 to 40 of about 7,388 (190)

Longitudinal Vibration of Nanobeams by Two-Phase Local/Nonlocal Elasticity, Rayleigh Theory, and Generalized Differential Quadrature Method [PDF]

open access: yesMechanics of Advanced Composite Structures, 2023
To solve a differential equation of motion via more reliable procedures, it is essential to realize their efficiency. Whether Rayleigh's theory can be a compatible platform with two-phase local/nonlocal elasticity to render more reliable results compared
Reza Nazemnezhad, Roozbeh Ashrafian
doaj   +1 more source

Programmable photonic crystal nanobeam cavities

open access: yesOptics Express, 2010
We present dynamically reconfigurable photonic crystal nanobeam cavities, operating at ~1550 nm, that can be continuously and reversibly tuned over a 9.5 nm wavelength range. The devices are formed by two coupled nanobeam cavities, and the tuning is achieved by varying the lateral gap between the nanobeams.
Ian W, Frank   +3 more
openaire   +2 more sources

Photonic crystal nanobeam cavities with lateral fins

open access: yesNanophotonics, 2021
We present the design, fabrication, and characterization of suspended arrays of small volume, high quality factor (Q) silicon nitride photonic crystal nanobeam (PCNB) cavities with lateral nanorod fin structures.
Liu Zhonghe   +3 more
doaj   +1 more source

Nonlocal Mechanical Behavior of Layered Nanobeams [PDF]

open access: yesSymmetry, 2020
The research at hand deals with the mechanical behavior of beam-like nanostructures. Nanobeams are assembled of multiple layers of different materials and geometry giving a layered nanobeam. To properly address experimentally noticed size effects in structures of this type, an adequate nonlocal elasticity formulation must be applied.
Raffaele Barretta   +2 more
openaire   +4 more sources

Nonlinear vibration control with nanocapacitive sensor for electrostatically actuated nanobeam

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
The model of a clamped–clamped Euler–Bernoulli beam is presented in order to study nonlinear vibration control of electrostatically actuated nanobeam with nanocapacitive sensor, considering primary and superharmonic resonances.
Qingmei Gong   +6 more
doaj   +1 more source

Visualization of one-dimensional diffusion and spontaneous segregation of hydrogen in single crystals of VO2 [PDF]

open access: yes, 2016
Hydrogen intercalation in solids is common, complicated, and very difficult to monitor. In a new approach to the problem, we have studied the profile of hydrogen diffusion in single-crystal nanobeams and plates of VO2, exploiting the fact that hydrogen ...
Cobden, David H.   +3 more
core   +2 more sources

Size-Dependent Mechanical Behaviors of Defective FGM Nanobeam Subjected to Random Loading

open access: yesApplied Sciences, 2022
Considering the uncertainties of the materials and loads, the nanobeam made of functionally graded materials were investigated based on the non-local elastic theory. The spline finite point method (SFPM) was established to analyze the bending behavior of
Zhenxian Luo, Qinghe Shi, Lei Wang
doaj   +1 more source

Slot-mode-coupled optomechanical crystals [PDF]

open access: yes, 2012
We present a design methodology and analysis of a cavity optomechanical system in which a localized GHz frequency mechanical mode of a nanobeam resonator is evanescently coupled to a high quality factor (Q>10^6) optical mode of a separate nanobeam ...
Almeida   +45 more
core   +3 more sources

Differential Quadrature and Differential Transformation Methods in Buckling Analysis of Nanobeams

open access: yesCurved and Layered Structures, 2019
In this paper, two computationally efficient techniques viz. Differential Quadrature Method (DQM) and Differential Transformation Method (DTM) have been used for buckling analysis of Euler-Bernoulli nanobeam incorporation with the nonlocal theory of ...
Jena Subrat Kumar, Chakraverty S.
doaj   +1 more source

Size-dependent analysis of a sandwich curved nanobeam integrated with piezomagnetic face-sheets

open access: yesResults in Physics, 2017
The aim of this research is to develop nonlocal transient magneto-electro-elastic formulation of a sandwich curved nanobeam including a nano-core and two piezo-magnetic face-sheets subjected to transverse mechanical loads and applied electric and ...
Ashraf M. Zenkour   +2 more
doaj   +1 more source

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