Results 81 to 90 of about 11,432 (211)

A Soft Robotic Morphing Wing for Unmanned Underwater Vehicles

open access: yesAdvanced Intelligent Systems, Volume 6, Issue 6, June 2024.
This study presents the design and hydrodynamic characterization of a soft wing for implementation on underwater gliders. Through hydraulic actuation, the soft wing deforms and adjusts its lift‐to‐drag ratio, which ranges from −70% to +10% with respect to a rigid wing.
Andrea Giordano   +12 more
wiley   +1 more source

Research on Unmanned Underwater Vehicle Threat Assessment

open access: yesIEEE Access, 2019
The unmanned underwater vehicle (UUV) plays an ever increasing and important role in the modern marine environment. In particular, the tasks of underwater reconnaissance and surveillance, underwater mine hunting and anti-submarine warfare, all poses a ...
Hongfei Yao   +4 more
doaj   +1 more source

Surviving Severe Bleeding After Childbirth: Consequences Along the Life Course?

open access: yes
Paediatric and Perinatal Epidemiology, Volume 39, Issue 3, Page 254-255, March 2025.
Ugochinyere Vivian Ukah, Cande V. Ananth
wiley   +1 more source

Man-in-the-Loop Control and Mission Planning for Unmanned Underwater Vehicles

open access: yesJournal of Marine Science and Engineering
UUVs (unmanned underwater vehicles) perform tasks in the marine environment under direction from a commander through a mother ship control system. In cases where communication is available, a UUV task re-planning system was designed to ensure task ...
Mengxue Han   +6 more
doaj   +1 more source

The distillability problem revisited

open access: yes, 2005
An important open problem in quantum information theory is the question of the existence of NPT bound entanglement. In the past years, little progress has been made, mainly because of the lack of mathematical tools to address the problem.
Clarisse, Lieven
core  

Lifshitz entanglement entropy from holographic cMERA

open access: yes, 2018
We study entanglement entropy in free Lifshitz scalar field theories holographically by employing the metrics proposed by Nozaki, Ryu and Takayanagi in \cite{Nozaki:2012zj} obtained from a continuous multi-scale entanglement renormalisation ansatz (cMERA)
Gentle, Simon A., Vandoren, Stefan
core   +1 more source

Dynamic Surface and Active Disturbance Rejection Control for Path Following of an Underactuated UUV

open access: yesJournal of Applied Mathematics, 2014
This paper addresses the problem of accurate path following control for an underactuated unmanned underwater vehicle (UUV) in the horizontal plane.
Juan Li   +3 more
doaj   +1 more source

A Polar Initial Alignment Algorithm for Unmanned Underwater Vehicles

open access: yesSensors, 2017
Due to its highly autonomy, the strapdown inertial navigation system (SINS) is widely used in unmanned underwater vehicles (UUV) navigation. Initial alignment is crucial because the initial alignment results will be used as the initial SINS value, which ...
Zheping Yan   +5 more
doaj   +1 more source

UUV Autonomous Decision-Making Method Based on Dynamic Influence Diagram

open access: yesComplexity, 2020
Considering the complexity and uncertainty of decision-making in the operating environment of an unmanned underwater vehicle (UUV), this study proposes an autonomous decision-making method based on the dynamic influence diagram (DID) and expected utility
Hongfei Yao, Hongjian Wang, Ying Wang
doaj   +1 more source

Universal attraction force-inspired freeform surface modeling for 3D sketching [PDF]

open access: yes, 2006
This paper presents a novel freeform surface modeling method to construct a freeform surface from 3D sketch. The approach is inspired by Newton’s universal attraction force law to construct a surface model from rough boundary curves and unorganized ...
Qin, S F, Wright, D K
core  

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