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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Laurent, Christian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2018Microstructure aspects of radiation-cured networks: Cationically polymerized aromatic epoxy resinscitations
- 2017Inside a feather
- 2016Silver nanoparticles as a key feature of a plasma polymer composite layer in mitigation of charge injection into polyethylene under dc stresscitations
- 2016The significance of electroluminescence in polyolefins
- 2016Charge injection mitigation in polyethylene induced by silver nanoparticles containing organosilicon barrier layer as demonstrated by conductivity measurements
- 2016Plasma based concept for engineering of multifunctional materials with application to synthesis of large-area plasmonic substrates and to control the charge injection in dielectrics
- 2014Efficient barrier for charge injection in polyethylene by silver nanoparticles/plasma polymer stackcitations
- 2014Tuning the plasma parameters for deposition of thin nanocomposite layer containing a monolayer of silver nanoparticles on polymer film
- 2008Space charge detection in Kapton and PTFE polymer films by the Open Pulsed Electro-Acoustic Methodcitations
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document
Inside a feather
Abstract
Feathers have been evolving for more than 130 million years under selection pressures to become light, stiff and strong. However, a detailed investigation into their material structure (and properties) is still lacking. Previously, using nanoindentation and μCT, we have shown that feather shafts are fibrous laminar composites and that their structure varies between species. Here we show a feather’s structure also varies around its circumference and along its length. We present the first synchrotron radiation computed tomography (SR-CT) dataset, from which we infer fibre orientation inside the feather shaft cortex. Scans of different locations on the shaft show that the number of laminae and fibre alignment within feather shafts of the heaviest flying bird, the Swan, are not fixed; they vary both around the circumference of the shaft and along its length. Our work opens a new perspective on a research question in avian biology which has remained unanswered for more than 30 years: what is the modulus of feather-keratin? To answer this question, one needs to take into account not only the shaft’s geometry but also its layup.