Results 61 to 70 of about 524,744 (263)

A COMPREHENSIVE REVIEW OF SELF-LUBRICATED POLYMERIC NANOCOMPOSITE BEARINGS FOR ROBOTIC APPLICATION [PDF]

Journal of the Egyptian Society of Tribology
Self-lubricated nanocomposite polymeric bearings are increasingly investigated for robotic joints, prosthetic systems, exoskeletons, and precision motion assemblies because they can reduce external-lubricant dependence, maintenance demand, and ...
Nada A. Abdelkarim, M. K. Mohamed, W. Y. Ali, Ameer Ali Kamel   +3 more
doaj   +1 more source

Cross-platform mechanical characterization of lung tissue. [PDF]

PLoS ONE, 2018
Published data on the mechanical strength and elasticity of lung tissue is widely variable, primarily due to differences in how testing was conducted across individual studies.
Samuel R Polio, Aritra Nath Kundu, Carey E Dougan, Nathan P Birch, D Ezra Aurian-Blajeni, Jessica D Schiffman, Alfred J Crosby, Shelly R Peyton   +7 more
doaj   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source

Local sign stability and its implications for spectra of sparse random graphs and stability of ecosystems

Journal of Physics: Complexity
We study the spectral properties of sparse random graphs with different topologies and type of interactions, and their implications on the stability of complex systems, with particular attention to ecosystems.
Pietro Valigi, Izaak Neri, Chiara Cammarota   +2 more
doaj   +1 more source

Organizational regularities in recurrent neural networks

Frontiers in Complex Systems
Previous work has shown that the dynamical regime of Recurrent Neural Networks (RNNs)—ranging from oscillatory to chaotic and fixed point behavior—can be controlled by the global distribution of weights in connection matrices with statistically ...
Claus Metzner, Achim Schilling, Andreas Maier, Patrick Krauss   +3 more
doaj   +1 more source

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

Advanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin, Émeline Cournède, Jens Krarup, Michael Lesa, Foyzul Hasan, Amandine Séné, Arnaud Lahouati, David Benhaiem, Jérémie‐Luc Sanchez, Simon Delacroix, Thierry Gacoin, Fabienne Testard, Damien Faivre, David Carriere, Corinne Chevallard, Olivier Taché, Mark A. Levenstein   +16 more
wiley   +1 more source

Sub-Synchronous Resonance Damping Control Strategy for DFIG Wind Turbines

IEEE Access, 2020
Doubly-fed induction generator (DFIG) wind turbines connected to capacitive series-compensated transmission lines are prone to exhibit oscillatory behavior.
Javier Samanes, Eugenio Gubia, Jesus Lopez, Rolando Burgos   +3 more
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

Advanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi, Samuele Lavelli, Zsolt M. Kovács‐Vajna, Fabrizio Torricelli   +3 more
wiley   +1 more source

Spectrum and fine spectrum of band matrices generated by oscillatory sequences

Operators and Matrices
In this paper, a new class of band matrices is considered where the entries of each non-zero band form a sequence with two limit points.
Rani, Jyoti, Patra, Arnab, Srivastava, P D   +2 more
openaire   +2 more sources