Results 181 to 190 of about 56,749 (281)

Thermomagnetic generators for ultra-low-grade marine thermal energy harvesting. [PDF]

Commun Eng
Moreno Resendiz E, Peterson T, Kishore RA.   +2 more
europepmc   +1 more source

Segmented Gurney Flaps for Improved Wind Turbine Wake Recovery

Wind Energy, Volume 29, Issue 3, March 2026.
ABSTRACT When wind passes through the rotor of a wind turbine, the velocity is decreased while turbulence is increased. The region of decreased wind speed behind the rotor is known as the wind turbine wake and is bounded by a complex structure of helical vortices. This structure occurs to be more stable in low ambient turbulence and low tip speed ratio
Nirav Dangi, Koen Boorsma, Edwin Bot, Wim Bierbooms, Wei Yu   +4 more
wiley   +1 more source

Fuzzy logic-based reactive power control for power factor enhancement in EV drives. [PDF]

Sci Rep
Mohan H, Kumar A, Saxena NK, Mishra S, Khetrapal P, Azzopardi B, Jately V.   +6 more
europepmc   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula, Rosa M. Espinosa‐Marzal   +1 more
wiley   +1 more source

Improving propulsive efficiency using bio-inspired intermittent locomotion. [PDF]

J R Soc Interface
Aurégan T, Lemoine M, Thiria B, Courrech du Pont S.   +3 more
europepmc   +1 more source

Bio‐Inspired Micro‐Fin‐Assisted Multi‐Modal Vascular Intervention

Advanced Science, Volume 13, Issue 8, 9 February 2026.
A magnetic guidewire with a micro‐fin–integrated tip is introduced for multimodal cardiovascular navigation. The micro‐fins exploit fluid drag to augment magnetic torque, enabling bifurcation traversal at 15 mT, tolerating 45° misalignment, bidirectional crawling, and buckle self‐correction.
Xu Liu, Qiang Luo, Zhuoqun Cao, Hongde Li, Xi Chen, Hong Wang, Mao Chen, Ziyu Ren, Wenqi Hu   +8 more
wiley   +1 more source

ANN-Based Modeling of Engine Performance from Dynamometer Sensor Data. [PDF]

Sensors (Basel)
Aldea CL, Bocu R, Chiriac RL.
europepmc   +1 more source

Phytoplankton Tune Local pH to Actively Modulate Circadian Gravitactic Behavior

Advanced Physics Research, Volume 5, Issue 2, February 2026.
Diel vertical migration hides an unexpected twist: Phytoplankton quietly engineer their local pH landscape, splitting into behaviorally distinct sub‐groups which stay separated even in identical conditions. Circadian pH changes, occuring over the course of a day, reshape their gravitactic behavior and physiological functions in ways scientists have ...
Arkajyoti Ghoshal, Soumitree Mishra, Jayabrata Dhar, Hans‐Peter Grossart, Anupam Sengupta   +4 more
wiley   +1 more source

Optimizing design parameters for slotted blade Savonius hydrokinetic turbine: A multi-fidelity approach. [PDF]

Sci Rep
Kumar R, Kumar A.
europepmc   +1 more source

A Versatile Setup for Determining Hydrogen and Oxygen Crossover of Electrolyzer Membranes and MEAs

Chemie Ingenieur Technik, Volume 98, Issue 1-2, Page 18-26, February 2026.
Hydrogen and oxygen crossover in PEM electrolyzers affects safety, efficiency and gas purity. We present an experimental setup to quantify crossover through membranes and polymers. It allows in‐situ tests on full cells with MEAs and measures gas permeation in wet or dry ionomers and other polymers.
Leander Treutlein, Ali Javed, Tobias Hilche, Hans Kungl, André Karl, Eva Jodat, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source