Results 81 to 90 of about 154,688 (325)

DSSRM Design With Multiple Pole Arcs Optimization for High Torque and Low Torque Ripple Applications

open access: yesIEEE Access, 2018
Double-stator switched reluctance motors (DSSRMs) are gaining much attention due to advantages of higher power/torque density and lower acoustic noise compared to conventional SRMs.
Qingguo Sun   +4 more
doaj   +1 more source

Numerical Simulations for Bobbin Tool Friction Stir Welding of Aluminum 6082-T6 [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Aluminum 6082-T6 panels were joined by friction stir welding utilizing a bobbin tool. A thermal simulation of the process was developed based upon machine torque and the temperature dependent yield stress utilizing a slip factor and an assumed ...
C. Hamilton   +3 more
doaj   +1 more source

A Predicted-Risk-Based Protection Approach for Turbine Generator Shafts against Fatigue Damage due to Islanding

open access: yesEnergies, 2022
A distributed generation steam turbine generator (hereafter referred to as turbine generator) improves the supply reliability of the local load when operated as a backup supply during islanding.
Bombay Babi, Pitshou N. Bokoro
doaj   +1 more source

Spin-torque generation by dc or ac voltages in magnetic layered structures

open access: yes, 2009
A general expression of the current induced spin torque in a magnetic layered structure in the presence of external dc or ac voltages is derived in the framework of the scattering matrix approach.
F. Romeo, R. Citro, S. S. P. Parkin
core   +1 more source

On a possible connection between Chandler wobble and dark matter [PDF]

open access: yes, 2009
Chandler wobble excitation and damping, one of the open problems in geophysics, is treated as a consequence in part of the interaction between Earth and a hypothetical oblate ellipsoid made of dark matter.
Portilho, Oyanarte
core   +3 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Direct current control of three magnon scattering processes in spin-valve nanocontacts

open access: yes, 2009
We have investigated the generation of spin waves in the free layer of an extended spin-valve structure with a nano-scaled point contact driven by both microwave and direct electric current using Brillouin light scattering microscopy. Simultaneously with
A. A. Serga   +12 more
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Reversal of Spin‐Torque Polarity with Inverting Current Vorticity in Composition‐Graded Layer at the Ti/W Interface

open access: yesAdvanced Electronic Materials
While compositional gradient‐induced spin‐current generation is explored, its microscopic mechanisms remain poorly understood. Here, the contribution of polarity of compositional gradient on spin‐current generation is explored.
Hayato Nakayama   +8 more
doaj   +1 more source

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