Results 61 to 70 of about 2,821 (185)

Glacial Imprints and Marine Overprints: Sediment Architecture and Fjord Evolution in Fiordland, New Zealand

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Fjords are globally significant sedimentary archives that record the relationship between glacial, tectonic, and marine processes. Fiordland, on the southwest coast of New Zealand, hosts one of the most extensive temperate fjord provinces in the Southern Hemisphere, yet its postglacial evolution has remained poorly constrained.
Ellen Unland, Andrew R. Gorman, Philip M. Barnes, Christopher M. Moy, Gary S. Wilson, Christina R. Riesselman, Jess I. T. Hillman   +6 more
wiley   +1 more source

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

Sedimentology, Volume 73, Issue 5, Page 1331-1351, August 2026.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey, Martin Jutzeler, Rebecca J. Carey   +2 more
wiley   +1 more source

Sequential Wedge Extrusion to Core Complex Extension: The Central Cycladic Detachment System on Syros, Greece

Tectonics, Volume 45, Issue 7, July 2026.
Abstract Syros island preserves pristine high‐pressure metamorphic rocks and provides invaluable insight into subduction zone processes. Contrasting views on the structural history impede placing the island in a clear tectonic framework, limiting the broader impact of preserved information.
Bertram Uunk, Fraukje Brouwer, Manuel de Paz‐Álvarez, Sander Taal, Lisa van de Beek, Martijn Ephraim, Guido Jonker, Naomi van den Ameele, Zoë Toorenburg, Boris Versteegh, Marjolein Daeter, Jan Wijbrans   +11 more
wiley   +1 more source

Quadrotor trajectory tracking based on backstepping control and radial basis function neural networks

Results in Control and Optimization
In this paper we introduce a novel method for solving the trajectory tracking problem for a quadrotor system based on backstepping control and radial basis function (RBF) neural networks.
Aristotelis Kapnopoulos, Charalampos Kazakidis, Alex Alexandridis   +2 more
doaj   +1 more source

Adaptive Backstepping Control for a Class of Nonlinear Systems With Unknown Time Delay

IEEE Access, 2020
In this paper, an adaptive backstepping control scheme is proposed for a class of nonlinear systems with unknown time delay. The unknown time delay in the system depends on all system states, which will inevitably destroy the triangular structure of the ...
Feng Qian, Jianping Cai, Binrui Wang, Rui Yu   +3 more
doaj   +1 more source

Backstepping Control of Drone [PDF]

The 1st International Conference on Computational Engineering and Intelligent Systems, 2022
Ali Saibi, Razika Boushaki, Hadjira Belaidi   +2 more
openaire   +1 more source

Development of a Dual-Cylinder Penetration Mechanism Controller for Deep-Sea Seabed Static Cone Penetration Equipment

IEEE Access
The penetration mechanism is the core actuator of deep-sea static cone penetration test equipment, enabling the probe and rods to advance into seabed sediment at a constant rate of 2 cm/s during in situ surveys.
Jiawang Chen, Kaichuang Wang, Shimin Wang, Xiaoxiao Liu, Zhonghui Zhou, Changbin Ren, Ziqiang Ren   +6 more
doaj   +1 more source

Dynamically Positioned Ship Steering Making Use of Backstepping Method and Artificial Neural Networks

Polish Maritime Research, 2018
The article discusses the issue of designing a dynamic ship positioning system making use of the adaptive vectorial backstepping method and RBF type artificial neural networks. In the article, the backstepping controller is used to determine control laws
Witkowska Anna, Rynkiewicz Tacjana Niksa
doaj   +1 more source

Adaptive Backstepping Sliding Mode Control of Air-Breathing Hypersonic Vehicles

International Journal of Aerospace Engineering, 2020
In this paper, a controller combining backstepping and adaptive supertwisting sliding mode control method is proposed for altitude and velocity tracking control of air-breathing hypersonic vehicles (AHVs). Firstly, the nonlinear longitudinal model of AHV
Shuo Wang, Ju Jiang, Chaojun Yu
doaj   +1 more source

A backstepping design for flight path angle control

Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187), 2002
A nonlinear approach to flight path angle control is presented. Using backstepping, a globally stabilizing control law is derived. Although the nonlinear nature of the lift force is considered, the pitching moment to be produced is only linear in the measured states.
Härkegård, Ola, Glad, Torkel
openaire   +3 more sources