Results 61 to 70 of about 16,186 (314)

Flight Mechanics and Control of Escape Manoeuvres in Hummingbirds. I. Flight Kinematics [PDF]

open access: yes, 2016
Hummingbirds are nature’s masters of aerobatic manoeuvres. Previous research shows that hummingbirds and insects converged evolutionarily upon similar aerodynamic mechanisms and kinematics in hovering.
Cheng, Bo   +6 more
core   +3 more sources

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Numerical Study of Hydrodynamic Derivatives and Course Stability under Ship-Bank Interaction [PDF]

open access: yesTransNav, 2018
Since ship-bank interaction affects the manoeuvrability of a ship navigating close to a bank, the determination of hydrodynamic derivatives is of great importance to assess the ship manoeuvrability.
Han Liu, Ning Ma, Xiechong Gu
doaj   +1 more source

Advances in Reconfigurable Vectorial Thrusters for Adaptive Underwater Robots

open access: yesJournal of Marine Science and Engineering, 2021
Manoeuvrability is one of the essential keys in the development of improved autonomous underwater vehicles for challenging missions. In the last years, more researches were dedicated to the development of new hulls shapes and thrusters to assure more ...
Henrique Fagundes Gasparoto   +3 more
doaj   +1 more source

Stopping manoeuvre of high speed vessels fitted with screw and waterjet propulsion [PDF]

open access: yes, 2009
Concern about the increase in high-speed vessel traffic necessitates steps to bring out safety guidelines in order to regulate and improve their manoeuvrability.
Krishnankutty, P., Varyani, K.
core   +2 more sources

Manoeuvring Strategically with Praeteritio [PDF]

open access: yesArgumentation, 2009
This paper investigates the role that the stylistic device of praeteritio (or paralipsis) can play in arguers’ attempts to reconcile their rhetorical with their dialectical aims by manoeuvring strategically when carrying out particular discussion moves of the dialectical procedure for resolving a dispute.
openaire   +2 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Fault tolerant control of a quadrotor using L-1 adaptive control [PDF]

open access: yes, 2016
Purpose – The growing use of small unmanned rotorcraft in civilian applications means that safe operation is increasingly important. The purpose of this paper is to investigate the fault tolerant properties to faults in the actuators of an L1 adaptive ...
Cooke, A. K.   +2 more
core   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

Experiences with designing and managing organic rotation trials [PDF]

open access: yes, 2002
This report was presented at the UK Organic Research 2002 Conference. Practical problems encountered in two long-term organic rotation trials at Aberdeen and Elgin are discussed.
Coutts, Michael   +4 more
core  

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