Results 81 to 90 of about 986,294 (286)

Space Charge Accumulation under Effects of Temperature Gradient and Applied Voltage Reversal on Solid Dielectric DC Cable [PDF]

open access: yes, 2009
A well-known fact of the existence and accumulation of space charge within the insulating material poses threat to the reliability in the operation of dc power cables.
Chen, George   +2 more
core   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

open access: yesAdvanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu   +4 more
wiley   +1 more source

Assessment of Cooling Conditions of Thermoplastic Insulation and Uniformity of Breakdown Strength for Medium-Voltage Direct Current Extruded Cable Insulation

open access: yesEnergies
Research has been conducted on medium-voltage direct current (MVDC) to address the limited transmission capacity of existing AC power transmission lines and to achieve efficient integration of renewable energy sources.
Keon-Hee Park   +3 more
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Topological Dirac-vortex modes in a three-dimensional photonic topological insulator

open access: yesNature Communications
Recently, topological Dirac-vortex modes in Kekulé-distorted photonic lattices have attracted broad interest and exhibited promising applications in robust photonic devices such as topological cavities, lasers, and fibers.
Bei Yan   +10 more
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Numerical simulation of transient electromagnetic response of aircraft to lightning strikes

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] With the rapid development of space technology, launching aircraft at sea has gradually become a future development trend. Aircraft flying in the atmosphere will sometimes encounter lightning strikes, which can cause damage to airborne ...
LI Qianhua   +6 more
doaj   +1 more source

Numerical solutions of the current distribution in superconducting cables [PDF]

open access: yes, 1987
Superconducting cables are described by current sheets using the continuum model of W. Carr Jr. [1] and assuming an anisotropic conductivity. Two different situations are considered: a) finite length of cable in spatially independent magnetic field; b ...
Hartmann, R.A.   +2 more
core   +2 more sources

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

Symbolic capital and the production discourse of The American Music Show: a microhistory of Atlanta cable access [PDF]

open access: yes, 2017
The American Music Show, an Atlanta cable public access television show that ran from 1981 to 2005, is not only a forgotten piece of production history but also a fertile case study.
Howell, Charlotte E.
core   +1 more source

Home - About - Disclaimer - Privacy