Results 61 to 70 of about 41,284 (223)

Path Following Control of Fully Actuated Autonomous Underwater Vehicle Based on LADRC

Polish Maritime Research, 2018
This paper presents an active disturbances rejecter controller (ADRC) for position and path following control of a fully actuated autonomous underwater vehicle (AUV).
Lamraoui Habib Choukri, Qidan Zhu
doaj   +1 more source

Evidence for the Strongest Version of the 4d a-Theorem, via a-Maximization Along RG Flows [PDF]

, 2004
In earlier work, we (KI and BW) gave a two line "almost proof" (for supersymmetric RG flows) of the weakest form of the conjectured 4d a-theorem, that a_{IR}
Anselmi, Anselmi, Anselmi, Anselmi, Anselmi, Argyres, Argyres, Brian Wecht, Cappelli, Cardy, Csaki, Edwin Barnes, Forte, Franco, Freedman, Gauntlett, Herzog, Intriligator, Intriligator, Intriligator, Jack, Jack, Jack, Jason Wright, Ken Intriligator, Kogan, Kogan, Kutasov, Kutasov, Kutasov, Novikov, Osborn, Osborn, Osborn, Osborn, Seiberg, Wallace, Wallace, Zamolodchikov   +38 more
core   +3 more sources

Regeneration of the lizard heart after cryoinjury

Experimental Physiology, EarlyView.
Abstract Lizards are renowned for their tremendous potential to heal tissues and organs after injury, but little is known about myocardial regeneration in reptiles generally. Here, we study cardiac regeneration in the leopard gecko (Eublepharis macularius) to fill the knowledge gap between traditional models of poikilothermic (zebrafish) and ...
Martina Gregorovicova, Barbora Sankova, Martin Bartos, Bjarke Jensen, Tobias Wang, David Sedmera   +5 more
wiley   +1 more source

Studies on situation reasoning approach of autonomous underwater vehicle under uncertain environment

CAAI Transactions on Intelligence Technology, 2021
The purpose of this study is to provide a situation reasoning module for autonomous underwater vehicle (AUV), to make decision‐making agents know what is the current situation, what needs to be done in the present situation, and what is the risk of task ...
Lili Yin, Deyun Chen, Hengwen Gu, Ning Guan, Rubo Zhang, Handan Hou   +5 more
doaj   +1 more source

Color Filtering Localization for Three-Dimensional Underwater Acoustic Sensor Networks

, 2014
Accurate localization for mobile nodes has been an important and fundamental problem in underwater acoustic sensor networks (UASNs). The detection information returned from a mobile node is meaningful only if its location is known.
Chang, Shuai, Chen, Jiaxing, Gao, Han, Liu, Zhihua, Wang, Wuling   +4 more
core   +2 more sources

On the matching method and the Goldstone theorem in holography [PDF]

, 2013
We study the transition of a scalar field in a fixed $AdS_{d+1}$ background between an extremum and a minimum of a potential. We compute analytically the solution to the perturbation equation for the vev deformation case by generalizing the usual ...
Bajc, Borut, Lugo, Adrian R.
core   +4 more sources

Collaborative Sampling and Imaging of Phytoplankton Communities by Two Long‐Range Autonomous Underwater Vehicles Using Acoustic Tracking and Messaging

Journal of Field Robotics, Volume 43, Issue 3, Page 1861-1870, May 2026.
ABSTRACT Collaborative operation of multiple autonomous underwater vehicles (AUVs) can effectively achieve scientific goals that are hard to achieve by independently operated vehicles. Some science payloads are large, expensive, and need to be installed in the vehicle's nose cone. A vehicle can only carry one such payload.
Yanwu Zhang, Brian Kieft, Monique Messié, Quinn Shemet, Brett W. Hobson, Paul Roberts, Brent Jones, Michael Anderson, Thom Maughan, Varsha Senthil   +9 more
wiley   +1 more source

Determination of nuclear parton distributions [PDF]

, 2001
Parametrization of nuclear parton distributions is investigated in the leading order of alpha_s. The parton distributions are provided at Q^2=1 GeV^2 with a number of parameters, which are determined by a chi^2 analysis of the data on nuclear structure ...
A. Bodek, A. Bodek, A.C. Benvenuti, A.D. Martin, A.D. Martin, A.H. Mueller, B. Adeva, D.F. Geesaman, G. Bari, H.L. Lai, I. Sick, J. Ashman, J. Ashman, J. Gomez, K.J. Eskola, L.L. Frankfurt, M. Arneodo, M. Arneodo, M. Glück, M. Hirai, M. Miyama, M. Miyama, M.R. Adams, M.R. Adams, P. Amaudruz, R. Kobayashi, S. Dasu, S. Kumano, S. Kumano, S. Kumano, S. Kumano, S.A. Kulagin, Y. Goto   +32 more
core   +2 more sources

On AUV control architecture [PDF]

Proceedings. 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2000) (Cat. No.00CH37113), 2002
This paper surveys control architectures proposed in the literature and describes a control architecture that is being developed for a semi-autonomous underwater vehicle for intervention missions (SAUVIM) at the University of Hawaii. Conceived as hybrid, this architecture has been organized in three layers: planning, control and execution.
Ridao Rodríguez, Pere, Yuh, Junku, Batlle i Grabulosa, Joan, Sugihara, K.   +3 more
openaire   +2 more sources

Solar Wind‐Magnetosphere‐Ionosphere Coupling During the October 2024 Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Two geomagnetic storms occurred in October 2024 (Oct 6‐9 and 10–12), driven by the impact of a series of interplanetary coronal mass ejections on the magnetosphere. The first was a moderate storm, with peak Sym‐H near −150 nT, whereas the second was intense, Sym‐H reaching −340 nT.
S. E. Milan, M. K. Mooney, G. E. Bower, R. M. Hodnett, U. V. Amerstorfer, C. Möstl, A. Samsonov, B. J. Anderson, J. Gjerloev, S. K. Vines   +9 more
wiley   +1 more source