Results 61 to 70 of about 149,579 (300)
Vertical axis wind turbine drive train transient dynamics [PDF]
, 1982 Start up of a vertical axis wind turbine causes transient torque oscillations in the drive train with peak torques which may be over two and one half times the rated torque of the turbine.
Carne, T. G., Clauss, D. B.
core +1 more source
Non-adiabatic spin torque investigated using thermally activated magnetic domain wall dynamics [PDF]
, 2010 Using transmission electron microscopy, we investigate the thermally activated motion of domain walls (DWs) between two positions in permalloy (Ni80Fe20) nanowires at room temperature.
H. J. van Driel +11 more
core +2 more sources
Spatially Tailorable Liquid Crystalline Elastomer Alignment During Digital Light Process 3D Printing
Advanced Functional Materials, EarlyView.Here, we report the fabrication of 3D printable liquid crystalline elastomer (LCE) structures with spatially tailorable alignment domains within the same layer. This work addresses the long‐standing challenge of preparing complex 3D LCE architectures with patterned functional domains to achieve nonlinear deformations. Fabrication of multi‐domains in 3D
Adam Bischoff +8 more
wiley +1 more source
International Journal of Rotating Machinery, 2014 The reverse force on the returning blade of a water turbine can be reduced by setting a deflector on the returning blade side of a rotor. The deflector configuration can also concentrate the flow which passes through the rotor so that the torque and the ...
Kaprawi Sahim +3 more
doaj +1 more source
An Experimental Study on the Darrieus-Savonius Turbine for the Tidal Current Power Generation
Journal of Fluid Science and Technology, 2008 The Darrieus turbine is popular for tidal current power generation in Japan. It is simple in structure with straight wings rotating around a vertical axis, so that it has no directionality against the motion of tidal flow which changes its direction ...
Yusaku KYOZUKA
doaj +1 more source
Sizing criterial for traction drives [PDF]
, 1983 A simplified traction drive fatigue analysis which was derived from the Lundberg-Palmgren theory is measured and the effects of rotational speed, multiplicity of contacts, and variation in the available traction coefficient on traction drive system life,
Coy, J. J. +2 more
core +1 more source
Windage measurements in a rotor stator cavity with rotor mounted protrusions and bolts [PDF]
, 2012 This paper reports an experimental investigation of the windage associated with enclosed rotor-stator systems with superposed throughflow, as commonly found in gas turbine engines.
Coren, Daniel +2 more
core +1 more source
Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing
Advanced Functional Materials, EarlyView.A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis +11 more
wiley +1 more source
Influence of magnetic viscosity on domain wall dynamics under spin-polarized currents
, 2009 We present a theoretical study of the influence of magnetic viscosity on current-driven domain wall dynamics. In particular we examine how domain wall depinning transitions, driven by thermal activation, are influenced by the adiabatic and nonadiabatic ...
C. Burrowes +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley +1 more source