Results 51 to 60 of about 38,647 (287)

A Hierarchal Planning Framework for AUV Mission Management in a Spatio-Temporal Varying Ocean

, 2017
The purpose of this paper is to provide a hierarchical dynamic mission planning framework for a single autonomous underwater vehicle (AUV) to accomplish task-assign process in a limited time interval while operating in an uncertain undersea environment ...
Atyabi, Adham, Powers, David M. W, Sammut, Karl, Yazdani, Amir Mehdi, Zadeh, Somaiyeh Mahmoud.   +4 more
core   +1 more source

Oxygen Supply of Islets of Langerhans by Photosynthetically Active Microalgae in Bioprinted Co‐Cultures Maintains Their Function in a Hypoxic Environment

Advanced Healthcare Materials, EarlyView.
This study developed a bioprinted co‐culture system embedding rat pancreatic islets and Scenedesmus sp. microalgae spatially defined in close vicinity. Red light was found optimal to ensure microalgal photosynthesis while maintaining islet viability and functionality. A tailored co‐culture medium supported both cell types.
Finn Dani, Sarah Duin, Ashwini Rahul Akkineni, Susann Lehmann, Barbara Ludwig, Michael Kühl, Michael Gelinsky, Anja Lode   +7 more
wiley   +1 more source

Probability-Based Recognition Framework for Underwater Landmarks Using Sonar Images †

Sensors, 2017
This paper proposes a probability-based framework for recognizing underwater landmarks using sonar images. Current recognition methods use a single image, which does not provide reliable results because of weaknesses of the sonar image such as unstable ...
Yeongjun Lee, Jinwoo Choi, Nak Yong Ko, Hyun-Taek Choi   +3 more
doaj   +1 more source

Development and testing of a dual accelerometer vector sensor for AUV acoustic surveys [PDF]

, 2017
This paper presents the design, manufacturing and testing of a Dual Accelerometer Vector Sensor (DAVS). The device was built within the activities of theWiMUST project, supported under the Horizon 2020 Framework Programme, which aims to improve the ...
Agni Mantouka, Barr, Friedrich Zabel, Luís Sebastião, Mário Saleiro, Paulo Felisberto, Paulo Santos, Peng, Sherman, Sérgio Jesus, Widmaier   +10 more
core   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Autonomous underwater vehicle docking system for energy and data transmission in cabled ocean observatory networks

Frontiers in Energy Research, 2022
Cabled ocean observatory networks (COON) are used for long-term all-weather observation of submarine scientific data, which contribute to low-carbon ocean energy research.
Kai Sun, Kai Sun, Zekai Han, Zekai Han, Zekai Han   +4 more
doaj   +1 more source

A Robust Model Predictive Control Approach for Autonomous Underwater Vehicles Operating in a Constrained workspace

, 2018
This paper presents a novel Nonlinear Model Predictive Control (NMPC) scheme for underwater robotic vehicles operating in a constrained workspace including static obstacles.
Heshmati-alamdari, Shahab, Karras, George C., Kyriakopoulos, Kostas J., Marantos, Panos   +3 more
core   +2 more sources

Dynamic Control of Mobile Multirobot Systems: The Cluster Space Formulation [PDF]

, 2014
The formation control technique called cluster space control promotes simplified specification and monitoring of the motion of mobile multirobot systems of limited size.
Kitts, Christopher, Mas, Ignacio Agustin
core   +1 more source

MarineSIM: Robot simulation for marine environments [PDF]

OCEANS'10 IEEE SYDNEY, 2010
Development of robust navigation algorithms for marine robotics is a challenge faced by many marine robotists. This paper presents MarineSIM, a marine robot simulation platform which provides an infrastructure to easily test and debug navigation algorithms before they are being deployed in the actual environment.
Senarathne, P. G. C. Namal, Wijesoma, Wijerupage Sardha, Wee Lee, Kwang, Kalyan, Bharath, M. D. P, Moratuwage, Patrikalakis, Nicholas M., Hover, Franz S.   +6 more
openaire   +2 more sources

Integrating Vibrio natriegens for Photon Manipulation in Living Lighting Devices

Advanced Materials, EarlyView.
Rationalization of genetic and material engineering tools has enabled the engineering of fluorescent Vibrio natriegens (V. natriegens) to fabricate straightforward, highly emissive and stable V. natriegens‐silicones color filters for the first red‐emitting bacteria‐hybrid light‐emitting diodes. This pinpoints V. natriegens as a high‐performance protein
Stephanie Willeit, Maurice Hädrich, Philippe‐Quentin Liss, Valeria Rodriguez Espinoza, Nicklas Maximilian Foerster, Bastian Blombach, Rubén D. Costa   +6 more
wiley   +1 more source