Results 121 to 130 of about 2,831 (296)

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Development of voltage standards for turbo-electric distributed propulsion aircraft power systems

, 2015
Distributed propulsion is being considered as a possible solution to increase aircraft efficiency, reduce fuel costs and reduce emissions. The size, weight and efficiency of components within a Turbo-electric Distributed Propulsion (TeDP) system are ...
Bollman, Andrew M., Stuart J. Galloway, Galloway, Stuart J., Catherine E. Jones, Michael J. Armstrong, Andrew M. Bollman, Patrick. J. Norman, Norman, Patrick J., Armstrong, Michael J., Jones, Catherine E.   +9 more
core   +1 more source

Optimization Strategy for Multi-Motor Cooperative Energy Recovery in Distributed Electric Propulsion Aircraft

Energies
Distributed Electric Propulsion aircraft have gained significant attention for advancing green aviation. However, their application is constrained by the limited energy density of batteries, resulting in weight compensation and flight range limitation ...
Xiangnan Deng, Bocong Zhang, Shuhao Deng, Fei Deng, Yacong Li, Tao Lei, Weilin Li, Xiaobin Zhang   +7 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Conceptual Assessment of Hybrid Electric Aircraft with Distributed Propulsion and Boosted Turbofans

, 2019
This paper presents the results of a study into the effect of distributed hybrid-electric propulsion on aircraft performance and characteristics. To size these aircraft, a new preliminary sizing method for hybrid-electric aircraft with distributed ...
Veldhuis, L.L.M., Roelof Vos, Vos, Roelof (author), Reynard de Vries, Vos, Roelof, Leo L. Veldhuis, Maurice Hoogreef, Hoogreef, M.F.M., Veldhuis, L.L.M. (author), Hoogreef, M.F.M. (author), de Vries, R., de Vries, R. (author)   +11 more
core   +1 more source

Aeroelastic Analysis of Flexible Wings With Distributed Electric Propulsion

Volume 3: Advanced Materials: Design, Processing, Characterization and Applications; Advancements in Industry; Advances in Aerospace Technology
Abstract The emergence of electric-powered aviation is leading to innovative aircraft configurations that incorporate slender, high-aspect-ratio wings with distributed propulsion systems. While these designs offer substantial benefits in efficiency and emissions reduction, they present significant aeroelastic challenges.
Yunus Emre Doğru, Musa Küçükali, Ali Eken, Seher Eken   +3 more
openaire   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Computational Analysis of a Wing Designed for the X-57 Distributed Electric Propulsion Aircraft

, 2017
A computational study of the wing for the distributed electric propulsion X-57 Maxwell airplane configuration at cruise and takeoff/landing conditions was completed.
Melissa B. Carter, Norma Farr, Farr, Norma L., Wiese, Michael R., Michael Wiese, Carter, Melissa B., Karen A. Deere, Viken, Sally A., Sally Viken, Viken, Jeffrey K., Jeffrey K. Viken, Deere, Karen A.   +11 more
core   +1 more source

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

Advanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena, Lucia Suarez, Aitor Ontoria, Francisca J. Benitez, Elixabete Rezabal, María Soledad Orellano, Marcelo Calderón, Cristián Huck‐Iriart, Agustin S. Picco, Matias L. Picchio, Ana Beloqui   +10 more
wiley   +1 more source

Preliminary Sizing of a Hybrid-Electric Passenger Aircraft Featuring Over-the-Wing Distributed-Propulsion

, 2019
This study compares a hybrid-electric aircraft featuring a propulsive empennage and over-the- wing, distributed-propulsion to a conventional regional turboprop. The impact of multiple design parameters, mission requirements, and technology assumptions on
Roelof Vos, Vos, Roelof (author), Reynard de Vries, Vos, Roelof, Maurice Hoogreef, Hoogreef, M.F.M., Hoogreef, M.F.M. (author), de Vries, R., de Vries, R. (author)   +8 more
core   +1 more source