نتایج جستجو برای: underwater gliders

تعداد نتایج: 16082  

Journal: :The Journal of experimental biology 2007
Kristin L Bishop

Gliding has often been discussed in the literature as a possible precursor to powered flight in vertebrates, but few studies exist on the mechanics of gliding in living animals. In this study I analyzed the 3D kinematics of sugar gliders (Petaurus breviceps) during short glides in an enclosed space. Short segments of the glide were captured on video, and the positions of marked anatomical landm...

2003
Genaro Juárez Martínez Harold V. McIntosh Juan Carlos Seck Tuoh Mora

We investigate the construction of all the periodic structures or “ gliders ” up to now known in the evolution space of the onedimensional cellular automaton Rule 110. The production of these periodic structures is developed and presented by means of glider collisions. We provide a methodology based on the phases of each glider to establish the necessary conditions for controlling and displayin...

Journal: :Complex Systems 2007
Emmanuel Sapin Olivier Bailleux Jacqueline Chabrier

This paper presents an evolutionary approach to searching for cellular automata that accept gliders. The proposed technique is based on a specific fitness function taking into account spatial evolution, the number of living cells, and the presence of gliders. The results show that the genetic algorithm is a promising tool for finding cellular automata with specific behaviors, and then could pro...

Journal: :Journal of Marine Science and Engineering 2022

Mesoscale eddies play an important role in regulating the global ocean ecosystem and climate variability. However, few studies have been found to focus on survey of underwater gliders (UGs) motion performance inside mesoscale eddies. The dynamic model UG considering eddy density is established predict its eddy. Ignoring effect vertical velocity UG, simulation results experimental data are compa...

2015
Lora M. Jensen Ian R. Wallis William J. Foley

Although ecologists believe that vertebrate herbivores must select a diet that allows them to meet their nutritional requirements, while avoiding intoxication by plant secondary metabolites, this is remarkably difficult to show. A long series of field and laboratory experiments means that we have a good understanding of the factors that affect feeding by leaf-eating marsupials. This knowledge a...

Journal: :journal of advances in computer research 2014
reza mohammadi seyyed yahya nabavi reza javidan

underwater acoustic wireless sensor network (uawsn) use acoustic signalsto transmit data. acoustic signals in underwater environment have high bit errorrate, long propagation delay and limited bandwidth. another constraint in uwasnis energy. due to these constraints, design of energy and bandwidth efficient andpropagation delay aware mac protocol is a great challenge in uwasn.underwater sensor ...

2018
Genaro J. Martinez Andrew Adamatzky Kenichi Morita

An elementary cellular automaton with memory is a chain of finite state machines (cells) updating their state simultaneously and by the same rule. Each cell updates its current state depending on current states of its immediate neighbours and a certain number of its own past states. Some cellstate transition rules support gliders, compact patterns of non-quiescent states translating along the c...

2008
Genaro Juárez Martínez Andrew Adamatzky Harold V. McIntosh

Rule 54, in Wolfram’s notation, is one of elementary yet complexly behaving one-dimensional cellular automata. The automaton supports gliders, glider guns and other non-trivial long transients. We show how to characterize gliders in Rule 54 by diagram representations as de Bruijn and cycle diagrams; offering a way to present each glider in Rule 54 with particular characteristics. This allows a ...

2007
Dan Edwards

There are several performance parameters for gliders that are useful to know. The ones I focused on are generating a sink polar, finding minimum sink speed, finding maximum L/D speed, and creating a speed to fly curve. Modelers using a system such as the Eagletree Glide can optimize their cross country soaring techniques by flying at the appropriate airspeed for the current flight conditions. A...

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