Results 61 to 70 of about 730,976 (283)

Moisture conditions in coated wood panels during 18 months natural weathering at five sites in Europe [PDF]

open access: yes, 2010
Wood moisture content of coated panels of Scots pine sapwood was recorded during 18 months natural weathering in Vienna by logging electric resistance and temperature near the surface.
Bollmus, Susanne   +5 more
core   +1 more source

Adjustment of Coatings Morphology and Particle Distribution of Layered Silicates by Freeze‐Drying for Improved Gas Barriers

open access: yesAdvanced Engineering Materials, EarlyView.
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes   +4 more
wiley   +1 more source

Influence of micro‐water on AC breakdown characteristics of C4F7N/CO2 gas mixture under non‐uniform electric field

open access: yesHigh Voltage, 2022
The application of eco‐friendly C4F7N/CO2 gas mixture has become a hot topic in the power industry. To obtain the influence law of micro‐water on the AC insulation characteristics of C4F7N/CO2 gas mixture, breakdown tests were carried out under different
Yuan Yang   +5 more
doaj   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

In Situ Encapsulation of SnS2/MoS2 Heterojunctions by Amphiphilic Graphene for High‐Energy and Ultrastable Lithium‐Ion Anodes

open access: yesAdvanced Science
Lithium‐ion batteries with transition metal sulfides (TMSs) anodes promise a high capacity, abundant resources, and environmental friendliness, yet they suffer from fast degradation and low Coulombic efficiency.
Wenjun Yu   +10 more
doaj   +1 more source

Research on DC component decay time constant of 1000 kV AC filter circuit breakers in UHV converter station

open access: yesThe Journal of Engineering, 2019
In hierarchically connected UHV DC projects, the 1000 kV AC filter sub-bank in converter station is provided with two 500 kV circuit breakers. To determine the test DC component decay time constant when breakers break short-circuit current, relevant DC ...
Li Zhenqiang   +3 more
doaj   +1 more source

Effect of cross-country fault of distance protection in transmission line with different voltage levels [PDF]

open access: yes, 2014
Transmission overhead line is one of the main elements in electric power system. Electrical power system comprises of generation, transmission and distribution. For transmission lines, it is used to transmit electric power to large load center. Nowadays,
Abdul Karim, Sazali P.   +4 more
core  

Nonlinear terahertz devices utilizing semiconducting plasmonic metamaterials

open access: yes, 2015
The development of responsive metamaterials has enabled the realization of compact tunable photonic devices capable of manipulating the amplitude, polarization, wave vector, and frequency of light. Integration of semiconductors into the active regions of
Averitt, Richard D.   +8 more
core   +1 more source

Full phase diagram of isolated skyrmions in a ferromagnet [PDF]

open access: yes, 2017
Magnetic skyrmions are topological quasi particles of great interest for data storage applications because of their small size, high stability, and ease of manipulation via electric current.
Beach, Geoffrey S. D.   +2 more
core   +4 more sources

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

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