Results 91 to 100 of about 38,649 (299)

Preliminary observations of Rustaveli basin, Mercury [PDF]

open access: yes, 2016
Rustaveli basin on Mercury (82.76° E, 52.39° N) is a 200.5 km diameter peak-ring basin. Since the approval of its name on April 24, 2012, it has not featured prominently in the literature.
Balme, M. R.   +3 more
core  

Effects of infill characteristics and strain rate on the deformation and failure properties of additively manufactured polyamide-based composite structures

open access: yesResults in Physics, 2020
Additive manufacturing is one of the advanced manufacturing methods for producing cellular composites with desired infill patterns. Previous studies of the influence of the printing infill characteristics on the material mechanical properties have mainly
Kui Wang   +5 more
doaj   +1 more source

Adhesive Double‐Network Granular Organogel E‐Skin

open access: yesAdvanced Materials Technologies, EarlyView.
We introduce a double‐network granular organogel adhesive for electronic skin, overcoming adhesion and strength trade‐offs. It provides reversible, robust bonding and ionic conductivity, enabling wearable and soft robotic e‐skin. Thanks to the e‐skin adhesive, a soft robotic trunk can recognize touch, temperature, humidity, and acidity.
Antonia Georgopoulou   +4 more
wiley   +1 more source

Revisiting topology optimization with buckling constraints

open access: yes, 2018
We review some features of topology optimization with a lower bound on the critical load factor, as computed by linearized buckling analysis. The change of the optimized design, the competition between stiffness and stability requirements and the ...
Ferrari, Federico, Sigmund, Ole
core   +1 more source

Three‐Dimensional Printed Microarchitected Hierarchically Porous Biodegradable PLA/S/CNT Nanocomposite Electrodes for High‐Performance Lithium–Sulfur Batteries

open access: yesAdvanced Materials Technologies, EarlyView.
Hierarchically microarchitected PLA/S/CNT cathodes are fabricated via scalable fused filament 3D printing as high‐sulfur‐loading hosts for rechargeable lithium–sulfur batteries. The assembled Li–S cells with sulfur loadings up to 17 mg cm−2 deliver an areal capacity of 9.2 mAh cm−2 and retain 96% of their discharge capacity after 100 charge–discharge ...
Vinay Gupta   +4 more
wiley   +1 more source

Densely distributed and real-time scour hole monitoring using piezoelectric rod sensors [PDF]

open access: yes, 2019
This study aims to validate a piezoelectric driven-rod scour monitoring system that can sense changes in scour depth along the entire rod at its instrumented location.
Funderburk, Morgan L   +3 more
core  

Roadmap to Gridlock: The Failure of Long-Range Metropolitan Transportation Planning [PDF]

open access: yes, 2008
Federal law requires metropolitan planning organizations in urban areas of more than 50,000 people to write long-range (20- to 30- year) metropolitan transportation plans and to revise or update those plans every 4 to 5 years.
Randal O'Toole
core   +1 more source

3D‐Printed Dynamic Heart Model With Left‐Side Anatomy and Integrated Sensor for Edge‐to‐Edge Repair and Regurgitation Reduction

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a fully synthetic, 3D‐printed dynamic heart model with left‐side anatomy featuring sutured mitral valve chordae tendineae analogs, embedded actuators for physiologic wall contraction, and customized flexible pressure sensors for the left ventricle.
Alejandro Guillen Obando   +7 more
wiley   +1 more source

Design Optimization of a Variable Stiffness Robotic Gripper with Passive Restoration Fabricated by Multimaterial 3D Printing

open access: yesAdvanced Robotics Research, EarlyView.
A multimaterial robotic gripper fabricated via multimaterial 3D printing integrates conductive thermopolymer joints with flexible elastomeric components. Joule heating enables precise joint‐level stiffness modulation, enhanced by embedded temperature sensors, passive shape restoration, and active cooling, enabling versatile manipulation capabilities ...
Daniel Jee Seng Goh   +4 more
wiley   +1 more source

High energy cosmic-ray interactions with particles from the Sun

open access: yes, 2011
Cosmic-ray protons with energies above $10^{16}$ eV passing near the Sun may interact with photons emitted by the Sun and be excited to a $\Delta^+$ resonance.
G. Kulikov   +5 more
core   +1 more source

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