Publications associées à Axes de rotation d'un aéronef

Effects of Positive versus Negative Yaw Angles on Wind-Turbine Performance: An Application of BEM Theory

Wind-turbine wakes have negative effects on wind-farm performance. They are associated with: (a) the velocity deficit, which reduces the generated power of downwind turbines; and (b) the turbulence level, which increases the fatigue loads on downwind turbi ...

2014

Optimization of Wind Farm Performance Based on Yaw Angle Control

Fernando Porté Agel, Majid Bastankhah

Inside wind farms, the wakes of upwind turbines result in a significant reduction in power production. Yawing upwind turbines can be used to deflect the wakes away from turbines. Even though this reduces the power production of upwind turbines, it can pote ...

2014

Optimization of Wind Farm Performance Based on Yaw Angle Control

Fernando Porté Agel, Majid Bastankhah

Inside wind farms, the wakes of upwind turbines result in a significant reduction in power production. Yawing upwind turbines can be used to deflect the wakes away from turbines. Even though this reduces the power production of upwind turbines, it can pote ...

2014

Optimization of Wind Farm Performance Based on Yaw Angle Control

Fernando Porté Agel, Majid Bastankhah

Inside wind farms, the wakes of upwind turbines result in a significant reduction in power production. Yawing upwind turbines can be used to deflect the wakes away from turbines. Even though this reduces the power production of upwind turbines, it can pote ...

2014

Characterization of Surface Cracks Through The Local Magnetic Field Induced by Eddy Currents

Hannes Bleuler, Marco Picasso, Pavel Kejik, Roland Moser, Gilles Raphaël Santi, David Florian Hippert

It is important to reliably characterize cracks in metallic mechanical parts in order to assess the serenity of damage due to fatigue. The most important parameter for this is the crack depth. This is notoriously difficult with standard Eddy current techni ...

Ios Press2014

Flow separation at the inner (convex) and outer (concave) banks of constant-width and widening open-channel bends

Koen Blanckaert

There is a paucity of data and insight in the mechanisms of, and controls on flow separation and recirculation at natural sharply-curved river bends. Herein we report on successful laboratory experiments that elucidate flow structure in one constant-width ...

Wiley-Blackwell2013

Vision-Based Navigation in Autonomous Close Proximity Operations Using Neural Networks

Seyed Mohammad Khansari Zadeh

Tight unmanned aerial vehicle (UAV) autonomous missions such as formation flight (FF) and aerial refueling (AR) require an active controller that works in conjunction with a precise sensor that is able to identify an in-front aircraft and to estimate its r ...

Institute of Electrical and Electronics Engineers2011

Improved multi-aircraft ground trajectory prediction for air traffic control

John Lygeros, Ioannis Lymperopoulos

Accurate trajectory prediction plays a fundamental role in advanced air traffic control operations, because it forms the basis for (among others) conflict detection and resolution schemes. It has been demonstrated that improved trajectory prediction accura ...

American Institute of Aeronautics and Astronautics2010

Robotic Hand-Held Surgical Device: Evaluation of End-Effector's Kinematics and Development of Proof-of-Concept Prototypes

Jamie Paik

We are working towards the development of a robotic hand-held surgical device for laparoscopic interventions that enhances the surgeons' dexterity. In this paper, the kinematics of the end effector is studied. Different choices of kinematics are compared d ...

2010

Gravity and observer's body orientation influence the visual perception of human body postures

Olaf Blanke, Christophe Lopez, Manuel Mercier, Christelle Bachofner

Since human behavior and perception have evolved within the Earth's gravitational field, humans possess an internal model of gravity. Although gravity is known to influence the visual perception of moving objects, the evidence is less clear concerning the ...

Association for Research in Vision and Ophthalmology2009

Axes de rotation d'un aéronef

Effects of Positive versus Negative Yaw Angles on Wind-Turbine Performance: An Application of BEM Theory

Optimization of Wind Farm Performance Based on Yaw Angle Control

Optimization of Wind Farm Performance Based on Yaw Angle Control

Optimization of Wind Farm Performance Based on Yaw Angle Control

Characterization of Surface Cracks Through The Local Magnetic Field Induced by Eddy Currents

Flow separation at the inner (convex) and outer (concave) banks of constant-width and widening open-channel bends

Vision-Based Navigation in Autonomous Close Proximity Operations Using Neural Networks

Improved multi-aircraft ground trajectory prediction for air traffic control

Robotic Hand-Held Surgical Device: Evaluation of End-Effector's Kinematics and Development of Proof-of-Concept Prototypes

Gravity and observer's body orientation influence the visual perception of human body postures

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Optimization of Wind Farm Performance Based on Yaw Angle Control

Effects of Positive versus Negative Yaw Angles on Wind-Turbine Performance: An Application of BEM Theory

Optimization of Wind Farm Performance Based on Yaw Angle Control

Optimization of Wind Farm Performance Based on Yaw Angle Control

Vision-Based Navigation in Autonomous Close Proximity Operations Using Neural Networks

Flow separation at the inner (convex) and outer (concave) banks of constant-width and widening open-channel bends

Characterization of Surface Cracks Through The Local Magnetic Field Induced by Eddy Currents

Improved multi-aircraft ground trajectory prediction for air traffic control

Robotic Hand-Held Surgical Device: Evaluation of End-Effector's Kinematics and Development of Proof-of-Concept Prototypes

Gravity and observer's body orientation influence the visual perception of human body postures