Results 71 to 80 of about 5,694 (306)

A numerical study of an inline oscillating cylinder in a free stream [PDF]

open access: yes, 2011
Simulations of a cylinder undergoing externally controlled sinusoidal oscillations in the free stream direction have been performed. The frequency of oscillation was kept equal to the vortex shedding frequency from a fixed cylinder, while the amplitude ...
Leontini, Justin S.   +5 more
core   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Analysis and Design Sensitivity Computations of Nonlinear Free and Forced Vibrations of Stepped Beams [PDF]

open access: yes, 1987
A finite element method is developed in this thesis for analyzing stepped beams under nonlinear free and forced vibrations. A new assumption is made to improve an existing finite element procedure for treating beams of nonuniform cross sections.
Xue, Yong Xiang
core   +2 more sources

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

open access: yesAdvanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus   +8 more
wiley   +1 more source

Płaskie drgania swobodne niepodpartych pierścieni kołowych. Część III. Formy jednoczęstościowych drgań swobodnych

open access: yesEngineering Transactions, 1990
Na podstawie poprzednich opracowań [1, 2] w niniejszej pracy omówiono charakterystyczne cechy jednoczęstościowych drgań swobodnych, powstających w modelu pierścienia uściślonym w sensie Timoshenki, związane z występowaniem dwuwymiarowych podprzestrzeni ...
Bogdan OLSZOWSKI
doaj  

Rezultati proračuna torzionih oscilacija u sistemu brodske dizel motorne propulzije / The results of torsional vibration calculation in the ship diesel engine propulsion system

open access: yesVojnotehnički Glasnik, 2008
U radu je prikazan tradicionalan postupak proračuna torzionih oscilacija u sistemu brodske dizel motorne propulzije. Realan sistem zamenjen je ekvivalentnim sistemom sa 19 stepeni slobode kretanja, za koji su analizirane slobodne i prinudne torzione ...
Dragan R. Trifković   +2 more
doaj   +1 more source

Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs

open access: yesAdvanced Functional Materials, EarlyView.
Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric   +8 more
wiley   +1 more source

On the Influence of Magnetic Field on the Forms of Free and Forced Vibrations of a Three-Layer Plate Containing Magnetorheological Elastomer

open access: yesМеханика машин, механизмов и материалов, 2014
Free and forced vibrations of a three-layered rectangular plate containing a magnetorheological elastomer is considered. The influence of the external stationary magnetic field on the natural frequencies and decrement of the plate is analyzed.
S.S. Maevskaia, G.I. Mikhasev
doaj  

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

open access: yesAdvanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi   +6 more
wiley   +1 more source

Free and forced vibrations of cantilever beams with viscous damping [PDF]

open access: yes, 1965
Free and forced vibrations of cantilever beam with viscous damping - equations of motion for shear, deflection, velocity, bending moment, and ...
Stanek, F. J.
core   +1 more source

Home - About - Disclaimer - Privacy