Results 31 to 40 of about 10,408 (217)

Pulsed Eddy-Current Crack-Characterization Experiments

, 1986
In the pulsed eddy-current (PEC) method of flaw detection, repetitive pulses of current in a transmitter coil are used to excite eddy currents in the test specimen. A separate receiver is excited by the transmitted and reflected fields, and variations in the receiver response are used to locate and characterize material variations of interest.
Fisher, J., Beissner, R.
openaire   +3 more sources

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Ion-lithium collision dynamics studied with an in-ring MOTReMi [PDF]

, 2012
We present a novel experimental tool allowing for kinematically complete studies of break-up processes of laser-cooled atoms. This apparatus, the 'MOTReMi', is a combination of a magneto-optical trap (MOT) and a Reaction Microscope (ReMi). Operated in an
A. Kelkar, A. LaForge, B. DePaola, B. Najjari, D. Fischer, D. Globig, D. Misra, H. Lindenblatt, J. Goullon, K. Schneider, M. Grieser, M. Schulz, M. Sell, R. Hubele, V. L. B. de Jesus, X. Wang   +15 more
core   +3 more sources

Multiparameter Methods with Pulsed Eddy Currents

, 1987
Multiparameter methods have been used for a number of years to distinguish certain material properties from others that may be varying in the same eddy-current inspection. Usually the measured data are the magnitudes and phases of the eddy currents at several fixed frequencies. Alternatively, the necessary data can be obtained from pulsed eddy currents
Dodd, C., Deeds, W.
openaire   +3 more sources

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Pulsed Eddy Current Electromagnetic Signal Noise Suppression Method for Substation Grounding Grid Detection

Energies
As the primary discharge channel for fault currents, substation grounding grids are crucial for ensuring the safe and stable operation of power systems.
Su Xu, Yanjun Zhang, Ruiqiang Zhang, Xiaobao Hu, Bin Jia, Ming Ma, Jingang Wang   +6 more
doaj   +1 more source

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Coating thickness measurements using pulsed eddy currents [PDF]

, 1955
"July 1,1955.""Reprinted from the Proceedings of the NATIONAL ELECTRONICS CONFERENCE, Vol. 10, February 1955.""The nondestructive measurement of the thickness of one metal coated or clad upon another metal as a base has been studied for the past twenty ...
Waidelich, Donald L.
core  

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source

Simple eddy current compensation by additional gradient pulses [PDF]

Concepts in Magnetic Resonance Part A, 2018
AbstractA simple compensation concept for eddy currents generated by additional gradient pulses is presented. Similar to other pre‐emphasis schemes, the gradient pulse shape is overemphasized in the opposite way of the effect of the eddy currents to compensate for the deviations from the anticipated (rectangular) shape.
Benjamin Niederländer, Peter Blümler
openaire   +1 more source