Results 131 to 140 of about 11,779,789 (364)

Research at the Institute of electrotechnology in the field of induction heating [PDF]

open access: yes, 2014
The paper informs generally about the activities at the Institute of Electrotechnology in Hannover, Germany in the fields of education and research in Electrotechnology.
Baake, E., Nacke, B.
core  

Quantifying Spatio‐Operational Heterogeneity in Electrochemical Devices via Operando Correlative Neutron and X‐Ray Tomography

open access: yesAdvanced Functional Materials, EarlyView.
Heterogeniety in electrochemical systems heavily influences device performance and durability. The study shows unique evidence of spatio‐operational heterogeneity in fuel cells via operando neutron and X‐ray tomography. Large variations in membrane thickness and hydration depend upon location and operating conditions, with implications on membrane ...
Pranay Shrestha   +9 more
wiley   +1 more source

Numerical Investigation on Forming Conditions Impact in Electromagnetic Tube Expansion Performance [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering
Electromagnetic Tube Expansion (EMTE) is a high-velocity forming process that utilizes transient magnetic fields to plastically deform tubular workpieces without physical contact. The process requires the generation of large currents via a capacitor bank,
Ilhem Boutana, Mohamed Rachid Mekideche
doaj  

Effective electromagnetic forces in thin sheet metal specimen

open access: yesMATEC Web of Conferences, 2015
Electromagnetic forming is mainly investigated for the macro world as the body forces in this high speed process are decreasing with the volume of the specimen.
Langstädtler L., Schenck C., Kuhfuss B.
doaj   +1 more source

Особенности моделирования процесса электромагнитного деформирования [PDF]

open access: yes, 2011
В работе выполнен конечно-элементный анализа электромагнитной штамповки с учетом взаимосвязи электромагнитных полей с механическим движением деформируемого тела.
Автономова, Людмила Владимировна   +2 more
core  

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

open access: yesAdvanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng   +9 more
wiley   +1 more source

Investigation of the Effect of Coil Current Waveform on Electromagnetic Tube Forming

open access: yesMetals
The coil current frequency and waveform have a great impact on the forming performance of the workpiece in electromagnetic forming. However, existing research is mostly limited to analyzing the influence of either frequency or waveform on the forming ...
Fangxiong Deng   +4 more
doaj   +1 more source

Electromagnetic Forming Rules of a Stiffened Panel with Grid Ribs

open access: yes, 2017
Electromagnetic forming (EMF), a technology with advantages of contact-free force and high energy density, generally aims at forming parts by using a fixed coil and one-time discharge.
Jinqiang Tan   +3 more
semanticscholar   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Guideline for Forming Stiffened Panels by Using the Electromagnetic Forces

open access: yesMetals, 2016
Electromagnetic forming (EMF), as a high-speed forming technology by applying the electromagnetic forces to manufacture sheet or tube metal parts, has many potential advantages, such as contact-free and resistance to buckling and springback.
Jinqiang Tan, Mei Zhan, Shuai Liu
doaj   +1 more source

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