Results 101 to 110 of about 340,239 (301)

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Influence of the Fixation Stiffness on the Vibrations of Short Single-Binding Beams

open access: yesМеханика машин, механизмов и материалов, 2018
The influence of the fixation stiffness on the vibrations eigenfrequencies of short single-binding beams is analyzed. The Timoshenko’s equation is used to describe the beam motion.
Alexander O. Shimanovsky, Jozef S. Bocko
doaj  

Free Vibration Analysis of Porous FGM Plates on Elastic Foundations with Temperature-Dependent Material Properties

open access: yesMathematics
This study investigates the free vibration behaviors of functionally graded (FGM) plates with a porous structure, resting on a Kerr-type elastic foundation, while accounting for thermal effects and complex material property distributions.
Aleksandar Radaković   +5 more
doaj   +1 more source

Asymptotic analysis of natural frequencies of axisymmetric oscillations of orthotropic cylindrical shells in an infinite elastic medium, liquid filled

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2019
Aim of the research. Free axisymmetric fluctuation of a cylindrical orthotropic cover, the infinite length contacting to the infinite elastic medium and filled with liquid is investigated. Methods.
Famil A Seyfullayev   +2 more
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

Simulation of Free Vibrations of Multi-Walled Carbon Nanotube Based on Non-Local Theory of Thin Elastic Orthotropic Shells

open access: yesМеханика машин, механизмов и материалов, 2013
The mathematical model of multi-walled carbon nanotube embedded in an elastic matrix is proposed. The effect of the surrounding elastic medium are considered using the Winkler-type spring constant. The tube may be prestressed by external forces.
G.I. Mikhasev, A.N. Sheiko
doaj  

Analysis of Monolithic and Sandwich Panels Subjected To Non-Uniform Thickness-Wise Boundary Conditions

open access: yesCurved and Layered Structures, 2016
The analysis of monolithic and sandwich plates is illustrated for those cases where the boundary conditions are not uniform along the thickness direction, and run at a given position along the thickness direction.
Vescovini Riccardo, Dozio Lorenzo
doaj   +1 more source

Identification of Modal Frequencies From the Pre-Stressed Concrete Bridge Dynamic Response to Different Sources of Dynamic Excitation

open access: yesCommunications, 2018
The natural frequencies and mode shapes are unique characteristics of each mechanical structure. Their prediction is a crucial part of each dynamic experimental measurement. However, the proper identification of higher natural frequencies and mode shapes
Jozef Melcer   +3 more
doaj   +1 more source

Some Free Vibration and Dynamic Response Problems Associated with Centrifugally Stabilized Disk and Shell Structures Semiannual Progress Report, 15 Feb. - 15 Aug. 1966 [PDF]

open access: yes
Natural frequencies and normal modes for free vibrations of flat spinning annular and centrifugally stabilized disk and shell ...
Eversman, W.
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

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