Results 21 to 30 of about 25,553 (263)

Correlation of Scale Factor Non-Linearity and Vibration Rectification Error in Vibrating Beam Accelerometers

open access: yesIEEE Access
Vibration Rectification Error (VRE) is a critical parameter for high-performance accelerometers operating in dynamic environments. This paper presents a focused experimental study to rigorously investigate the relationship between VRE and Scale Factor ...
Theo Miani   +6 more
doaj   +1 more source

Biomechanics in liver regeneration after partial hepatectomy

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The liver is a complicated organ within the body that performs wide-ranging and vital functions and also has a unique regenerative capacity after hepatic tissue injury and cell loss.
Yi Wu   +13 more
doaj   +1 more source

Probing supermassive black hole binaries with orbital resonances of laser-ranged satellites

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Coalescing supermassive black hole binaries (SMBHBs) are the primary source candidates for low frequency gravitational wave (GW) detections, which could bring us deep insights into galaxy evolutions over cosmic time and violent processes of spacetime ...
Minghui Du   +4 more
doaj   +1 more source

Shell-Stripping Mechanism of Red Sandstone Under Hypervelocity Impact with Aluminum Spheres

open access: yesAerospace
To investigate the size effect on fragmentation phenomena during hypervelocity impact, scaled experiments were conducted using a 30 mm smooth-bore ballistic range (DBR30) driven by a detonation-driven two-stage launching system.
Yizhe Liu   +7 more
doaj   +1 more source

Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation

open access: yesShock and Vibration, 2019
We construct new fractal acoustic metamaterials by coiling up space, which can allow subwavelength-scale and broadband sound insulation to be achieved.
Yu Liu   +6 more
doaj   +1 more source

Performance and Modeling of a Two-Stage Light Gas Gun Driven by Gaseous Detonation

open access: yesApplied Sciences, 2020
A two-stage light gas gun driven by gaseous detonation was newly constructed, which can make up for the disadvantages of the insufficient driving capability of high-pressure gas and the constraints of gunpowder.
Weiqi Tang   +7 more
doaj   +1 more source

Capillary Dynamics Analysis of Millimetric Tubes for Anti‐Slip Surfaces: A Phase‐Field Based Finite Element Approach and Experimental Validation

open access: yesAdvanced Theory and Simulations, EarlyView.
Phase‐field method based numerical modelling of the capillary rise in millimeter‐sized tubes, aiming for anti‐slip applications. The experimental validation was performed through capillary assays in polyethylene oxide (PEO) bulk modified polydimethylsiloxane (PDMS) channels.
Shivam Sharma   +7 more
wiley   +1 more source

Gecko‐Inspired Adhesive for Robotic Grippers with Excellent Ultra‐Low‐Temperature Adhesion Performance

open access: yesAdvanced Science, EarlyView.
Phenyl and vinyl groups are used to modify conventional polydimethylsiloxane (PDMS) to yield poly(methylphenylvinylsiloxane) (PMPVS). PMPVS‐based gecko‐inspired arrays with mushroom tips exhibit superior adhesion strength of 36.7 kPa even at −80 °C, which enhances by 5143% compared to PDMS‐based arrays (0.7 kPa at −70 °C).
Jiabao Feng   +6 more
wiley   +1 more source

Gravity‐Tolerant In‐Flight 3D Bioprinting Enabled by Stereolithography for Space Tissue Engineering

open access: yesAdvanced Science, EarlyView.
A flight‐compliant, closed stereolithographic 3D bioprinting system enables robust fabrication of acellular and cell‐laden hydrogel constructs under varying gravitational conditions, including microgravity and hypergravity phases. Printed structures retain dimensional fidelity and high‐resolution features, while cell viability remains high ...
Bianca Lemke   +8 more
wiley   +1 more source

Programmable‐Stiffness Tensegrity Continuum Robot for Adaptive Multicurvature On‐Orbit Assembly

open access: yesAdvanced Intelligent Systems, EarlyView.
A bioinspired tensegrity‐based continuum robot (BTCR) with programmable stiffness enables adaptive multicurvature morphing via coordinated intra‐ and intermodule regulation. A unified energy‐based framework predicts self‐equilibrium and deformation for serial modules. Experiments and Simulations demonstrate reconfiguration into hexagonal, circular, and
Yubin Wu   +5 more
wiley   +1 more source

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