Results 61 to 70 of about 171,290 (313)

Switchable Thermal Mid‐IR Conducting Polymer Antenna Arrays

Advanced Functional Materials, EarlyView.
This study presents switchable mid‐infrared plasmonic resonances in PEDOT antenna arrays. Their optical extinction peaks can be reversibly switched ‘OFF’ and ‘ON’ by tuning the polaronic charge carrier concentration via the polymer's redox state, offering modulation of optical responses in the thermal mid‐infrared range including around 10 µm ...
Pravallika Bandaru, Mohammad Shaad Ansari, Suraya Kazi, Dongqing Lin, Alexander Yu Polyakov, Magnus P. Jonsson   +5 more
wiley   +1 more source

One-shot learning for solution operators of partial differential equations

Nature Communications
Learning and solving governing equations of a physical system, represented by partial differential equations (PDEs), from data is a central challenge in many areas of science and engineering. Traditional numerical methods can be computationally expensive
Anran Jiao, Haiyang He, Rishikesh Ranade, Jay Pathak, Lu Lu   +4 more
doaj   +1 more source

Experimental and Numerical Investigation of a Cracked Cantilever Beam for Damping Factor to Access its Applicability in the Crack Detection

U.Porto Journal of Engineering, 2022
The cracks alter the physical and modal properties of the beam, i.e., stiffness, damping, natural frequency, and mode shapes, and, in turn, the dynamic response of the beam changes to a considerable extent.
vikas khalkar, S. G. Kumbhar, K. Logesh, P. Hariharasakhtisudhan, S. D. Jadhav, B. A. Danawade, S. H. Gharat, L. M. Jugulkar, J. G. Borade   +8 more
doaj   +1 more source

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

Flow and Flame Stabilization in Scramjet Engine Combustor with Two Opposing Cavity Flameholders

Aerospace
Scramjet operation requires a comprehensive understanding of the internal flowfield, encompassing fuel–air mixing and combustion. This study investigates transient flow and flame development within a HIFiRE-2 scramjet engine combustor, which features two
Jayson C. Small, Liwei Zhang, Bruce G. Crawford, Valerio Viti   +3 more
doaj   +1 more source

Deterministic hBN Bubbles as a Versatile Platform for Studies on Single‐Photon Emitters

Advanced Functional Materials, EarlyView.
Single‐photon emitters (SPEs) in hBN are promising for quantum technologies; however, in exfoliated samples their activation is required, limiting reproducibility of previous studies. This work introduces a large‐area MOVPE‐grown hBN platform that hosts SPEs without prior activation.
Piotr Tatarczak, Tomasz Fąs, Jan Pawłowski, Aleksandra Krystyna Dąbrowska, Jan Suffczyński, Mateusz Tokarczyk, Piotr Wróbel, Andrzej Wysmołek, Johannes Binder   +8 more
wiley   +1 more source

Adjoint-Assisted Shape Optimization of Microlenses for CMOS Image Sensors

Sensors
Recently, there have been significant developments in the designs of CMOS image sensors to achieve high-resolution sensing capabilities. One of the fundamental factors determining the sensor’s ability to capture high-resolution images is its efficiency ...
Rishad Arfin, Jens Niegemann, Dylan McGuire, Mohamed H. Bakr   +3 more
doaj   +1 more source

Comparison of 2D grid simulations for flow past cylinder at high Reynolds numbers [PDF]

, 2019
The paper focuses on the verification of the suitability of the SST k - omega model on the flow past a circular cylinder in 2D for a high Reynolds number.
Kološ, Ivan, Lausová, Lenka, Michalcová, Vladimíra   +2 more
core   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source

Finite element analysis of cardiovascular stent frames: identifying appropriate mesh discretization

Frontiers in Medical Engineering
Engineers use finite element analysis (FEA) to predict the deformations, strains, stresses, and resistive forces of metallic stent frames under in vivo, in vitro, and manufacturing-induced loading conditions.
Brandon A. Lurie, Stuart Kari, Marc Horner, Christopher A. Basciano, Santhosh Kumar Murugadass, Nuno Rebelo   +5 more
doaj   +1 more source