Results 51 to 60 of about 91,980 (390)

Analytical Model of Position Uncertainty of Ship's Plan Geometry in Integrated Navigation System [PDF]

open access: yesTransNav, 2007
For safety reason it would be essential to apply uncertainty of ship's contour position in safety evaluation of maneuvers carried out on basis of INS (Integrated Navigation Systems) indications, instead of real dimensions of the ship's contour. The paper
Arkadiusz Tomczak
doaj  

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

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Estimation of ship manoeuvring characteristics in the conceptual design stage [PDF]

open access: yes, 1996
In relation to the problems of the maritime safety, the diversification in ship types or the growth in ship sizes has enhanced the significance of manoeuvrability as one of the fundamental performances of ships.
Kamil, Mohd. Salim, Mainal, Mohd. Ramzan
core  

Random patterns in fish schooling enhance alertness: a hydrodynamic perspective [PDF]

open access: yes, 2016
One of the most highly debated questions in the field of animal swarming and social behaviour, is the collective random patterns and chaotic behaviour formed by some animal species, in particular if there is a danger.
Brümmer, Franz   +2 more
core   +2 more sources

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

Pushing the envelope [PDF]

open access: yes, 1998
This article is a description of the manoeuvre envelope in microlight aeroplanes, and how it is ...
Gratton, GB
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Combined hydrodynamic and control analysis on optimal kinematic parameters for bio-inspired autonomous underwater vehicle manoeuvring

open access: yesFrontiers in Physics, 2023
To investigate the manoeuvring performance of a body-caudal fin robot fish, a numerical framework combining computational fluid dynamics and multi-body dynamics with a closed-loop control algorithm was established in this study. Within this framework, we
Marvin Wright, Qing Xiao, Qiang Zhu
doaj   +1 more source

Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space

open access: yesAdvanced Robotics Research, EarlyView.
A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy