Results 51 to 60 of about 3,315 (185)

Electrical Modalities in the Rehabilitation of Peripheral Nerve Injuries: State of the Literature and Current Clinical Applications

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Peripheral nerve injuries (PNIs) are a common cause of long‐term motor and sensory disability despite advances in microsurgical repair. Functional recovery following PNI depends not only on axonal regeneration, but also on preservation of distal nerve pathways, maintenance of neuromuscular junction integrity, prevention of irreversible muscle ...
Sarah M. Smith   +5 more
wiley   +1 more source

A Wind Tunnel Experimental Study on the Flexible Flapping Wing With an Attached Airfoil to the Root

open access: yesIEEE Access, 2019
With the purpose to improve the performance of the flexible membrane flapping wing, a kind of flapping wing with an attached airfoil to the root is designed and tested in a wind tunnel.
Peng Nian   +4 more
doaj   +1 more source

Complications of Cochlear Implant Surgery in Low‐ and Middle‐Income Countries: A Systematic Review

open access: yesOtolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective Hearing loss disproportionately affects low‐ and middle‐income countries (LMICs). Recent advances in cochlear implant surgery have benefitted patients globally, but the risk of complications in LMICs may be heightened due to social and structural factors.
Akash Srinivasan   +4 more
wiley   +1 more source

Design of Flapping Wing Aircraft based on Crank Chute Mechanism

open access: yesJixie chuandong, 2022
Aiming at the problem of phase lag in flapping wing of traditional flapping wing aircraft,a kind of flapping wing aircraft driven by crank chute mechanism is designed,its modeling and simulation analysis are carried out,the prototype is made and the ...
Qi Li, Yu Cai, Xiansheng Huang, Bin Liu
doaj  

A Review of Advances in Composite Materials, Structural Optimization, and Machine Learning for Wind Turbine Blades: Challenges and Future Perspectives

open access: yesPolymer Composites, EarlyView.
Overview of the holistic engineering lifecycle and core research pillars for wind turbine blades. ABSTRACT This paper reviews recent advancements across the lifecycle of wind turbine blades, focusing on three interconnected areas: advanced composites, structural optimization, and machine learning (ML) diagnostics. In materials, we highlight progress in
Kemal Hasirci   +2 more
wiley   +1 more source

Research Progress on Modeling and Control Methods of Flapping‑Wing/Flapping‑Wing Rotor Micro Air Vehicle Systems

open access: yesNanjing Hangkong Hangtian Daxue Xuebao
Flapping-wing vehicles, inspired by the wing kinematics of insects and birds, exhibit remarkable aerodynamic efficiency and maneuverability under low-Reynolds-number regimes.
HE Yuanyuan   +4 more
doaj   +1 more source

The Efficiency of a Hybrid Flapping Wing Structure—A Theoretical Model Experimentally Verified

open access: yesAerospace, 2016
To propel a lightweight structure, a hybrid wing structure was designed; the wing’s geometry resembled a rotor blade, and its flexibility resembled an insect’s flapping wing.
Yuval Keren   +2 more
doaj   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Design and Testing of a Minimal Configuration Underwater Micro‐Glider: Automating Lake and Reservoir Monitoring

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Uncrewed underwater vehicles (UUVs) have transformed oceanographic research through autonomous data gathering. Similarly, lake and other aquatic research can potentially be automated and transformed. However, UUVs would need to be smaller, lighter, less complex, and cheaper than currently available to make them more practical and user‐friendly
James M Rand   +3 more
wiley   +1 more source

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