Results 171 to 180 of about 862 (246)

Wing extension-flexion coupled aeroelastic effects improve avian gliding performance. [PDF]

J R Soc Interface
Wong JCM, Joshi V, Jaiman RK, Altshuler DL.   +3 more
europepmc   +1 more source

Primitivity testing in free group algebras via duality

Journal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract Let K$K$ be a field and F$F$ a free group. By a classical result of Cohn and Lewin, the free group algebra KF$K\left[F\right]$ is a free ideal ring (FIR): a ring over which the submodules of free modules are themselves free, and of a well‐defined rank. Given a finitely generated right ideal I⩽KF$I\leqslant K\left[F\right]$ and an element f∈I$f\
Matan Seidel, Danielle Ernst‐West, Doron Puder   +2 more
wiley   +1 more source

Flapping Foil-Based Propulsion and Power Generation: A Comprehensive Review. [PDF]

Biomimetics (Basel)
Kandel P, Wang J, Deng J.
europepmc   +1 more source

Mechanical intelligence for artificial wings: A philosophy for multifold high-degree morphing with its mechanisms analogous to biology. [PDF]

Innovation (Camb)
Luo B, Wei Li.
europepmc   +1 more source

Experimental Results of a Fluid Actuated Morphing Winglet Trailing Edge [PDF]

Designing active control surface technology into thin regions of aircraft wings is challenging due to small available volumes. To be able to do so is potentially beneficial to enable more efficient wing designs using morphing for e.g.
Keimer, Ralf, Schäfer, Michael, Vasista, Srinivas   +2 more
openaire   +2 more sources

Enhancing start-up and torque in Darrieus VAWTs through a novel plain gurney flap design. [PDF]

Sci Rep
Eltayeb W, Somlal J, SirElkhatim M, Yedukondalu G, Srinath A.   +4 more
europepmc   +1 more source

Parametric Optimization of VLM Panel Discretization Using Bio-Inspired Crayfish and Aquila Algorithms Coupled with Hybrid RSM-Based Ensemble Machine Learning Surrogate Models: A Case Study. [PDF]

Biomimetics (Basel)
Eraslan Y, Şengün E.
europepmc   +1 more source

Manufacturing and Preliminary Testing of Nano-Filled Elastomeric Film Cover for Morphing Airfoil. [PDF]

Sensors (Basel)
Ciminello M, Piscitelli F, Volponi R, Ameduri S.   +3 more
europepmc   +1 more source

Enhancing vehicle performance through the application of airfoils as spoilers with movable trailing edge. [PDF]

F1000Res
Karaki A, Abu Sirreya M, Zalloum M, Amro H.   +3 more
europepmc   +1 more source

Research on the Coupled Bionic Design and Validation of Flying Car Folding Wings Based on Eurasian Eagle-Owl Wing Shape. [PDF]

Appl Bionics Biomech
Li Z, Cao Y, Zhao D.
europepmc   +1 more source