Discussion: “Gyroscopic Effects on the Critical Speeds of Flexible Rotors” (Green, R. B., 1948, ASME J. Appl. Mech., 15, pp. 369–376) [PDF]
, 1949 A. M. G. Moody
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Comparison of upwind and downwind rotor operations of the DOE/NASA 100-kW Mod-O wind turbine [PDF]
Three aspects of the test results are compared: rotor blade bending loads, rotor teeter response, and nacelle yaw moments. As a result of the tests, it is shown that while mean flatwise bending moments were unaffected by the placement of the rotor ...
Corrigan, R. D. +2 more
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Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai +3 more
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Closure to “Discussion of ‘The Dynamics and Lubrication of a Miniature Turbine Rotor on Porous Bushings’” (1954, Trans. ASME, 76, p. 326) [PDF]
, 1954 George Sines
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Testing of a one-bladed 30-meter-diameter rotor on the DOE/NASA Mod-O wind turbine [PDF]
Tests were conducted on the DOE/NASA Mod-O 200-kW horizontal-axis wind turbine in a one-bladed rotor configuration. The objectives of the test were to evaluate the performance, loads, and dynamic characteristics of a one-bladed rotor, and then to compare
Berkowitz, B. M. +2 more
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Advancements in Machine Learning for Microrobotics in Biomedicine
Advanced Intelligent Systems, EarlyView.Microrobotics is an innovative technology with great potential for noninvasive medical interventions. However, controlling and imaging microrobots pose significant challenges in complex environments and in living organisms. This review explores how machine learning algorithms can address these issues, offering solutions for adaptive motion control and ...
Amar Salehi +6 more
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An Aerial Robot Achieving Bimodal Flight and Independent Attitude Control through Passive Morphing
Advanced Intelligent Systems, EarlyView.This article presents a bimodal aerial robot capable of operating in both standard quadcopter and revolving flight modes. With four rotors, it independently controls position and roll‐pitch attitude across five degrees of freedom. The design features passive revolute joints, allowing seamless mid‐air transitions between modes using centrifugal forces ...
Jihao Xu, Pakpong Chirarattananon
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Harnessing Negative Photochromism in Styryl Cyanines for Light‐Modulated Proton Transport
Angewandte Chemie, EarlyView.We show how photo switchable styryl cyanines undergo an extremely efficient photochemical ring‐closing reaction upon irradiation. Furthermore, substituents on the ring and the nature of their surroundings can be used to tune their chemistry, kinetics, and photochemical properties. Finally, we demonstrate how these molecules can be used as smart dopants
Gianni Pacella +6 more
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Spring and Power in Hovering Ornithopters
Advanced Intelligent Systems, EarlyView.Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau +4 more
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