Results 101 to 110 of about 15,143 (300)

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

open access: yesAdvanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang   +5 more
wiley   +1 more source

Numerical Analysis Of Viscous Wall Dampers On Steel Frame

open access: yesMATEC Web of Conferences, 2018
The structure is designed to minimize component damaged, one of them is using a damping system. Viscous Wall Damper is one of the damping systems, using high viscosity liquids as dampers.
Hidayaty Effy   +3 more
doaj   +1 more source

Numerical Assessment of Roll Motion Characteristics and Damping Coefficient of a Ship

open access: yesJournal of Marine Science and Engineering, 2018
Accurate calculation of the roll damping moment at resonance condition is essential for roll motion prediction. Because at the resonance condition, the moment of inertia counteracts restoring moment and only the damping moment resists increase in the ...
S.S. Kianejad   +3 more
doaj   +1 more source

Shock isolation systems incorporating Coulomb friction

open access: yes, 2012
This study investigates a novel approach to the problem of shock isolation. The questions considered are whether friction produces a better performance in terms of reduced response during a shock compared to viscous damping and a lower residual response ...
Ismail, Mohd
core  

Compact Tabletop Magnetic Resonance Elastography for Mapping Soft Tissue Viscoelasticity

open access: yesAdvanced Science, EarlyView.
This work introduces a compact, low‐cost tabletop magnetic resonance elastography platform for high‐resolution viscoelastic mapping in soft‐tissue specimens. Using this method in human colorectal liver metastases, we demonstrate fully automated biomechanical profiling of treatment response and show that heterogeneity‐based metrics outperform ...
Weijie Zhao   +19 more
wiley   +1 more source

A Numerical Investigation on Scaling Rolling Friction Effects in Shaking Table Model Tests

open access: yesShock and Vibration, 2019
Friction action is a damping mechanism used in civil structures. It often works together with traditional viscous damping. The rolling friction action is nonlinear, and its scaling process in shaking table model tests is suspect, especially in cases of ...
Shanshan Li   +3 more
doaj   +1 more source

Derivation of the Rayleigh-Plesset equation in terms of volume

open access: yes, 2007
The most common nonlinear equations of motion for the pulsation of a spherical gas bubble in an infinite body of liquid arise in the various forms of the Rayleigh-Plesset equation, expressed in terms of the dependency of the bubble radius on the ...
Leighton, T.G.
core  

A Supramolecular Reversible and Anisotropic Conductive Adhesive for Flexible Electronics

open access: yesAdvanced Science, EarlyView.
Supramolecular network‐based nanocomposites are developed as a stretchable conductive adhesive for flexible electronics. It's as convenient as traditional solders and constructs anisotropic conductive and robust stretchable connections among diverse soft/rigid materials.
Tongtong Li   +8 more
wiley   +1 more source

Rans predictions of roll viscous damping of ship hull sections [PDF]

open access: yes, 2011
The unsteady flow around a forced rolling hull section with and without bilge keels is computed using URANS code ReFRESCO. In this paper, extensive studies have been carried out in the dependence on grid resolution and time-step size on the linear roll
Jaouen, F.   +3 more
core   +1 more source

Optimisation of Longitudinal Seismic Energy Dissipation System for Straddle-type Monorail-Cum-Road Long-Span Cable-Stayed Bridge

open access: yesShock and Vibration, 2019
To investigate the optimal longitudinal seismic energy dissipation system of straddle-type monorail-cum-road long-span cable-stayed bridges, the Niutianyang Bridge was selected as the engineering background, and the explicit time-domain dimension-reduced
Xiong Liang   +3 more
doaj   +1 more source

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