Results 21 to 30 of about 20,808 (340)

Overview effect of biodiesel storage on properties and characteristics [PDF]

open access: yes, 2014
. Biofuels based on vegetable oils offer the advantage being a sustainable and environmen-tally attractive alternative to conventional petroleum based fuel.
Khalid, Amir   +3 more
core   +1 more source

Experimental Study on Propulsion Characteristic of Autonomous Intervention ROV [PDF]

open access: yes한국해양공학회지, 2019
In autonomous interventions using an underwater vehicle with a manipulator, grasping based on target detection and recognition is one of the core technologies.
Taekyeong Yeu   +4 more
doaj   +1 more source

The predictive functional control and the management of constraints in GUANAY II autonomous underwater vehicle actuators [PDF]

open access: yes, 2018
Autonomous underwater vehicle control has been a topic of research in the last decades. The challenges addressed vary depending on each research group's interests.
Gauthier Sellier, Alain   +2 more
core   +2 more sources

A Dynamic Submerging Motion Model of the Hybrid–Propelled Unmanned Underwater Vehicle: Simulation and Experimental Verification

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
Hybrid propulsion in underwater vehicles is the new idea of combining conventional propulsion systems such as screw propellers with other kinds of propulsion like oscillating biomimetic fins, glider wings or jet thrusters.
Talarczyk Tomasz
doaj   +1 more source

Kinematic and Electromyographic Changes During 200 m Front Crawl at Race Pace [PDF]

open access: yes, 2012
The purpose of this study was to analyse eventual kinematic and electromyographic changes during a maximal 200 m front crawl at race pace. 10 male international level swimmers performed a 200 m maximal front crawl test.
Fernandes, R. J.   +4 more
core   +1 more source

Ultra-fast escape maneuver of an octopus-inspired robot [PDF]

open access: yes, 2014
We design and test an octopus-inspired flexible hull robot that demonstrates outstanding fast-starting performance. The robot is hyper-inflated with water, and then rapidly deflates to expel the fluid so as to power the escape maneuver.
Subramaniam, V.   +2 more
core   +1 more source

Separability of drag and thrust in undulatory animals and machines [PDF]

open access: yes, 2014
For nearly a century, researchers have tried to understand the swimming of aquatic animals in terms of a balance between the forward thrust from swimming movements and drag on the body.
Bale, Rahul   +5 more
core   +3 more sources

Modeling and propulsion methods of underwater snake robots [PDF]

open access: yes2017 IEEE Conference on Control Technology and Applications (CCTA), 2017
In this paper we consider underwater snake robots (USRs) that may be equipped with additional added effectors along their body, including caudal, dorsal and pectoral fins, tunnel thrusters and/or a stern propeller. We propose a mathematical model for USRs swimming in a 2D plane, which includes the extra propulsion forces acting on each link from the ...
Kelasidi, Eleni   +4 more
openaire   +2 more sources

A novel propulsion method of flexible underwater robots [PDF]

open access: yes2011 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2011
This paper presents aims at mobility improvement of flexible underwater robots. For this purpose, a novel propulsion method using planar structural vibration pattern is proposed, and tested on two kinds of prototypes. The result of experiments showed the possibility of the movements for multiple directions: forward, backward, turn, rotation, drift, and
Shintake, Jun   +2 more
openaire   +2 more sources

Design and Experiments with a Low-Cost Single-Motor Modular Aquatic Robot

open access: yes, 2020
We present a novel design for a low-cost robotic boat powered by a single actuator, useful for both modular and swarming applications. The boat uses the conservation of angular momentum and passive flippers to convert the motion of a single motor into an
Knizhnik, Gedaliah, Yim, Mark
core   +1 more source

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