ECOVATIVE

 

En utilisant du mycélium – la partie végétative du champignon – Ecovative a mis au point un certain nombre d’innovations, parmi lesquelles une alternative écologique au polystyrène expansé, repris par Dell par exemple pour emballer ses ordinateurs et les protéger des chocs.

Le matériau Myco Foam est biodégradable à 100% et revient à la terre sous forme de nutriments. Sa fabrication ne dépend pas du pétrole contrairement au polystyrène classique. Le géant suédois du meuble en kit, Ikea, a annoncé son souhait de remplacer ses emballages en polystyrène par ce matériau.

Parmi les autres utilisations possibles : des entremêlements bois/champignon pour la construction de mobilier d’intérieur sans formaldéhyde (produit nocif pour la santé présent dans certains meubles) ; des kits pour faire pousser son propre mycélium à la maison ; et des ours en peluche-champignon !


Planche de la Biomim’Galerie : https://flic.kr/p/UqZZFy

 

MYCOWORKS

 

Les champignons possèdent une partie végétative souterraine, formant un réseau filamenteux assez dense, c’est le mycélium.

La start-up américaine MycoWorks créée en 2013 considère le champignon comme un matériau. Elle a développé en octobre 2016 un procédé de fabrication de « cuir » à partir de champignons. Ce mode de production est peu polluant, mais il offre surtout une alternative à l’utilisation des peaux animales.

Pour le produire, il faut faire pousser dans un moule du mycélium avec un substrat, et des déchets organiques, comme nourriture. Le mycélium va au fur et à mesure se densifier et prendre la forme du moule. Pour obtenir le résultat final, il suffit de faire sécher le produit puis de le passer dans un four pour éliminer tous les microorganismes.

Ce cuir écologique, biodégradable, et à faible empreinte carbone, est prometteur, d’autant plus que la production obtenue à partir de mycélium est évidemment beaucoup plus rapide (et moins mortelle 🙂 que celle avec une vache (par exemple). Pour une même dimension, la production nécessite quelques semaines avec les champignons contre 3 ans avec un animal.


Mars 2021 : la société Hermès a dévoilé son nouveau sac de modèle Victoria, en toile, cuir de veau et Sylvania, un alter-cuir de mycélium, développé grâce à la technologie Fine Mycelium produit par MycoWorks !!

Post LinkedIn : https://www.linkedin.com/posts/mycoworks_finemycelium-collaboration-hermes-activity-6776198444341186561-7A6E

Press release : https://www.mycoworks.com/introducing-sylvania-by-hermes


Planche de la Biomim’Galerie : https://flic.kr/p/UjmbGD


Site web

 

NASA – THE ALBATROS FLIGHT

NASA Albatross Dynamic Soaring Open Ocean Persistent Platform UAV Concept

This concept investigate the feasibility of a dynamic soaring (DS) UAV that will have an endurance on the order of months.

This capability is enabling for numerous civil missions from ocean and atmospheric science to fishery surveillance and monitoring. Many of these missions are simply not feasible do to the cost of operating a fueled aircraft with limited endurance.

An aircraft such as this could be built in the thousands. They would distribute themselves over the oceans of the planet providing a robust surveillance network that has persistence which is only limited by the reliability of the hardware. This aircraft is based on the Albatross which in habitats the southern oceans by Antarctica.

The typical Albatross weighs about 25 lbs. They have an aspect ratio 16 wing with an 11 foot span. They are estimated to have an L/D of 27. Since there are few static soaring opportunities over the ocean, the Albatross uses a technique called Dynamic Soaring (DS) to maintain flight. Dynamic soaring is a figure eight-like flight maneuver that takes advantage of horizontal wind gradients to maintain flight speed and altitude.

The albatross can travel over 1000 km per day without ever flapping their wings through the constant use of such maneuvers, while able to tack any direction with independence of wind direction The Albatross is also able to lock their shoulder joint to rest their muscles and even capable of sleeping while performing the DS flight maneuvers.

This UAV Concept has the same weight and size of the Albatross and would be propelled by the wind alone utilizing this same DS technique. Tip turbines on the wing tips extract power from the tip vortex to power the payload and recharge the batteries. When the wind dies the aircraft has the ability to safely land on the surface of the ocean. Solar cells will be used to keep the payload and other electronics running. The tip turbines can also be used as propellers to provide takeoff thrust and at other times to provide auxiliary propulsion to allow the aircraft to maneuver away from an obstacle.


Dynamic Soaring: How the Wandering Albatross Can Fly for Free


WASHINGTON UNIVERSITY

Wireless steerable vision for live insects and insect-scale robots

Vision serves as an essential sensory input for insects but consumes substantial energy resources. The cost to support sensitive photoreceptors has led many insects to develop high visual acuity in only small retinal regions and evolve to move their visual systems independent of their bodies through head motion.

By understanding the trade-offs made by insect vision systems in nature, we can design better vision systems for insect-scale robotics in a way that balances energy, computation, and mass. Here, we report a fully wireless, power-autonomous, mechanically steerable vision system that imitates head motion in a form factor small enough to mount on the back of a live beetle or a similarly sized terrestrial robot.

Our electronics and actuator weigh 248 milligrams and can steer the camera over 60° based on commands from a smartphone. The camera streams “first person” 160 pixels–by–120 pixels monochrome video at 1 to 5 frames per second (fps) to a Bluetooth radio from up to 120 meters away.

We mounted this vision system on two species of freely walking live beetles, demonstrating that triggering image capture using an onboard accelerometer achieves operational times of up to 6 hours with a 10–milliamp hour battery.

We also built a small, terrestrial robot (1.6 centimeters by 2 centimeters) that can move at up to 3.5 centimeters per second, support vision, and operate for 63 to 260 minutes.

Our results demonstrate that steerable vision can enable object tracking and wide-angle views for 26 to 84 times lower energy than moving the whole robot.

More : https://robotics.sciencemag.org/content/5/44/eabb0839

Scientific publication : https://www.sciencemag.org/about/science-licenses-journal-article-reuse


Contact :

Vikram Iyer

vsiyer@uw.edu
185 Stevens Way, AE100R Campus Box 352500
Paul G. Allen Center, Department of Electrical Engineering
Seattle, WA 98195-2500

About      News      Publications      CV

About Me


I am a final year PhD. student in Electrical and Computer Engineering at the University of Washington where I work in the Network and Mobile Systems Lab with Shyam Gollakota. I also work closely with Sawyer Fuller who runs the Autonomous Insect Robotics Lab. My research focuses on wireless technologies such as communication, power and localization for a variety of resource constrained platforms including low power sensors and insect scale robots. Recently I have been focused on developing bio-integrative systems such as cameras and sensors small enough to ride on the back of live insects like bumblebees and beetles. I am also a part of the Urban Innovation Initiative at Microsoft Research working on Project Eclipse, a low-cost cloud connected air quality monitoring platform for cities.

Before coming to UW I did my Bachelors in Electrical Engineering and Computer Sciences at UC Berkeley where I worked on a chip scale flow cytometer with Bernhard Boser.

I will be applying for faculty positions this year. I expect to graduate in spring 2021.