Sentences with phrase «with robotic fish»

In [20], golden shiners swam in a water tunnel with a robotic fish whose tail - beat was systematically varied along with the flow speed.

Deng and his team initially tested the concept in the lab with a robotic fish tail.

Not exact matches

Most robotic fish are like fish out of water: They're surprisingly poor swimmers, and they often scare away any other creatures they come in contact with.

As is often the case with robotics, Leonard looked to nature — fish, birds and honeybees — for inspiration and information.

The Persian carpet flatworm, the cuttlefish and the black ghost knifefish look nothing like each other — their last common ancestor lived 550 million years ago, before the Cambrian period — but a new study uses a combination of computer simulations, a robotic fish and video footage of real fish to show that all three aquatic creatures have evolved to swim with elongated fins using the same mechanical motion that optimizes their speed, helping to ensure their survival.

Although the use of rigid metal and plastic parts tends to result in stiff, mechanical motion, a team at the Massachusetts Institute of Technology (M.I.T.) is experimenting with the use of a single piece of flexible silicon and urethane polymer to create robotic fish that smoothly wriggle through the water much like their natural counterparts.

In collaboration with doctoral candidate Paul Phamduy and NYU - Poly research scholar Giovanni Polverino, Porfiri designed an experiment to examine the interplay of visual cues and flow cues — changes in the water current as a result of tail - beat frequency — in triggering a live golden shiner fish to either approach or ignore a robotic fish.

The results indicate that, obtained with a tail - beat frequency of, is a critical speed for the robotic fish, with increases above or below this threshold differentially affecting zebrafish collective response.

Therefore, we propose that visual cues associated with the motion of the robot at are relevant factors in shaping the interaction between the live subjects and the robotic fish.

Specifically, the following predictions are expected to be met: i) fish attraction toward the robotic fish should vary as the visual cues offered by the robotic fish are varied, in agreement with similar observations for zebrafish in [35]--[37]; ii) fish attraction should vary as a function of the robotic fish tail - beat frequency, as suggested in [60] and observed in [20]; and iii) the highest attraction should be reached when both visual and flow cues from the live fish are simultaneously integrated in the robotic fish prototype.

In line with [48], we observe that fish preference is significantly higher when the species - specific color pattern is experimentally integrated into the robotic prototype.

To assess the degree of biomimicry in the robotic fish design, the undulations of the robotic fish were compared with classical models of carangiform swimming [60].

Our results show that fish positional preference is affected by the color of the robotic fish, whereby a prototype with a bioinspired color pattern (Gray robot) is more attractive than a red replica (Red robot).

The bioinspired colored robotic fish prototype (referred to as «Gray robot») was painted with a light gray color, and the fins were shaded gray while a black line was drawn along its longitudinal length.

The authors would like to gratefully acknowledge Dr. A. L. Facci for the technical support on PIV measurements, Mr. M. Drago for the technical support on the design of the robotic fish prototype, Ms. L. Yang and Mr. K. Khan for their valuable help in performing the experiments, and Dr. S. Macri for the useful discussion and the assistance with the behavioral classification using the software Observer.

The pupils can choose between seven topics of nanotechnology: the creation of artificial muscles, microbiological fuel elements, manipulation of nanoparticles, nanoparticles and ionic liquids as oil additives, materials used in regenerative medicine, deposition and 3D - characterisation of atomically designed structures and a topic covered in English, «Artificial robotic fish with EAP elements».

This confusing world encompasses standard - issue toon realities (worlds of water and snow peopled by talking fish and bears) as well as more stylistically adventurous ones, such as a red desert which mixes ancient ziggurats with with the Mexican day of the dead, a forest grown within a malfunctioning robotic biosphere, and the vaguely steampunk - gothic homeland of Capy's kind, who fly airships shaped like top hats, furnished with plump armchairs.

There is a wide selection of different robotic fish enemies along the way, that are dealt with in a unique way of trapping in a bubble and giving them a push, rather than the usual fighting system we've seen in Disney Infinity.

With so many robotic fish projects in the works, it seems like we'll have quite a bit of biotech - diversity among «species» of robotic fish out in the ocean, all collecting climate change data.

Such is the natural order of things for a fickle fandom: on Wednesday they are stunned by robotic dinosaurs and on Friday they are smitten with a handsome and optimistic fish - man.