Results 111 to 120 of about 1,994,742 (352)

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos   +8 more
wiley   +1 more source

Arcing High Impedance Fault Detection Using Real Coded Genetic Algorithm

open access: yes, 2007
Safety and reliability are two of the most important aspects of electric power supply systems. Sensitivity and robustness to detect and isolate faults can influence the safety and reliability of such systems.
Al-Othman, A.K.   +2 more
core  

An approximation to the planar harmonic impedance for interface waves in piezoelectric body

open access: yesArchives of Acoustics, 2009
TIt is well known that spatial-temporal Green function characterizes sufficiently the elastic media. For the case of elastic interface waves which propagate at the interface between two, perfectly mechanically contacting piezoelectric ...
Eugeniusz J. DANICKI
doaj  

Differentiating Phenotypes of Coronavirus Disease-2019 Pneumonia by Electric Impedance Tomography. [PDF]

open access: yesFront Med (Lausanne), 2022
Lovas A   +7 more
europepmc   +1 more source

ELECTRIC IMPEDANCE OF HIPPONOË EGGS [PDF]

open access: yesJournal of General Physiology, 1935
Alternating current resistance and capacity measurements have been made from 1.08 103 to 2.32 106 cycles per second on suspensions of unfertilized, fertilized, and swollen unfertilized eggs of the echinoderm Hipponoë esculenta. A simple method has been developed for measuring the volume concentration of eggs in a suspension.
openaire   +3 more sources

Large Area, Cost‐Effective, and Ultra‐Fast Fabrication of Mini‐Coils Toward Noninvasive Magnetic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A simple, cleanroom‐free method produces flexible mini‐coils using automated blade cutting. The process is fast, low‐cost, and supports diverse materials. The coils show strong durability and performance under repeated bending. Demonstrated use in resistor‐inductor filters and magnetic nanoparticle control proves their adaptability.
Changhao Ge   +5 more
wiley   +1 more source

ELECTRIC IMPEDANCE OF SUSPENSIONS OF ARBACIA EGGS

open access: yesThe Journal of General Physiology, 1928
Apparatus has been designed and constructed for the measurement of the electric impedance of suspensions of Arbacia eggs in sea water to alternating currents of frequencies from one thousand to fifteen million cycles per second. This apparatus is simple,
K. Cole
semanticscholar   +1 more source

Impact of Structural Adhesive Hybridization Strategy on the Performance of In‐Mold Electronics Devices Across Thermoforming and Injection Molding

open access: yesAdvanced Engineering Materials, EarlyView.
In‐mold electronics (IME) undergo complex thermoforming and over‐molding processes that strain device integrity. This study demonstrates how adapting the amount and placement of structural adhesive to local deformation levels preserves electrical functionality.
Francisco Ituriel Arias‐García   +3 more
wiley   +1 more source

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