Results 51 to 60 of about 1,560 (287)

Investigation of vacuum arc ignition characteristics and erosion morphology microstructure characteristics of CuCr55 electrode contact materials

open access: yesAIP Advances
Copper–chromium alloy material, as one of the most important electrode contact materials in the field of electrical contact, has been widely used in vacuum interrupters.
Siyuan Liu   +3 more
doaj   +1 more source

Melt Electrowriting High Resolution Poly(ethylene‐co‐vinyl acetate) Scaffolds for Soft Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
This work pioneers melt electrowriting (MEW) of polyethylene vinyl acetate (PEVA) to fabricate ultra‐compliant, high‐resolution scaffolds. By integrating microscale precision with soft tissue‐like biomechanics, PEVA overcomes stiffness‐driven limitations of conventional MEW polymers, establishing a mechanically biomimetic platform for soft tissue ...
Finn Snow   +9 more
wiley   +1 more source

Discharge characteristics of composite insulation system with floating electrode and solid insulator in vacuum [PDF]

open access: yes, 2016
For the development of vacuum interrupters for their higher voltage application in power transmission systems, it is necessary to clarify the discharge characteristics of composite insulation systems with a shield (floating electrode) and a solid ...
66963   +11 more
core   +1 more source

Full-scale simulation of high-current vacuum arc in vacuum interrupter under axial magnetic field

open access: yesAIP Advances
Most existing studies on vacuum arcs confine the arc to the space directly between the electrodes. Contacts are often slotted to facilitate magnetic field control of the arc, thereby artificially restricting the arc-burning zone and overlooking the ...
Yueran Liu   +5 more
doaj   +1 more source

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

open access: yesAdvanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur   +7 more
wiley   +1 more source

Релейная защита и автоматика схемы электроснабжения Казанского нефтегазоконденсатного месторождения [PDF]

open access: yes, 2015
Цель работы: проектирование микропроцессорной РЗ для Казанского нефтегазоконденсатного месторождения ОАО «Томскгазпром». Объект работы: релейная защита района Казанского нефтегазоконденсатного месторождения ОАО «Томскгазпром». Предмет исследования: выбор
Валиев, Тимур Тофикович
core  

High-current anode phenomena in vacuum arcs [PDF]

open access: yes, 2018
The goal of the work is to investigate the high-current anode phenomena using spectroscopic methods as well as electrical measurements. Different current waveforms and vacuum interrupter properties on the formation of high-current anode phenomena are ...
Khakpour, Alireza (gnd: 1176446886)
core   +1 more source

The Analysis of the Thermal Processes Occurring in the Contacts of Vacuum Switches During the Conduction of Short-Circuit Currents

open access: yesEnergies
This article presents the results of research on the thermal state of vacuum switch contacts during the conduction of short-circuit currents. This state is directly related to the value of the flowing current and the operating conditions of the switch ...
Karol Nowak   +2 more
doaj   +1 more source

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

open access: yesAdvanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao   +8 more
wiley   +1 more source

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