Results 51 to 60 of about 42,728 (267)

SMA-YOLO: A Defect Detection Algorithm for Self-Explosion of Insulators Under Complex Backgrounds

open access: yesIEEE Access
Insulators are essential components in power transmission systems, and identifying faults in them promptly through UAV imaging is vital for maintaining grid reliability and operational safety.
Kaiyue Yu   +4 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Equivalent analysis of contaminations under simulated fog-haze and natural fog-haze

open access: yes电力工程技术, 2022
The uncertainty of haze weather makes it difficult to carry out research on its impact on power equipment. However,whether the research under simulated haze environment is equivalent to that under actual haze weather is related to the guiding value of ...
WANG Jianhui   +5 more
doaj   +1 more source

Theory of Mott insulator–band insulator heterostructures [PDF]

open access: yesPhysical Review B, 2004
11 pages, 9 ...
Okamoto, Satoshi, Millis, Andrew J.
openaire   +2 more sources

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators

open access: yesApplied Sciences, 2019
The deterioration of the cement that bonds the cap, pin, and porcelain shell of the porcelain insulators can be observed by three-dimensional computed tomography (3D-CT), a non-destructive test. When porcelain insulators are used for a long duration, the
Taeyong Kim   +5 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Insulator Fault Detection Based on Spatial Morphological Features of Aerial Images

open access: yesIEEE Access, 2018
Because insulators provide electrical insulation and mechanical support for electric transmission lines, these components are of paramount importance to safe and reliable operations of power systems.
Yongjie Zhai   +4 more
doaj   +1 more source

Spin-Hall Insulator [PDF]

open access: yesPhysical Review Letters, 2004
Recent theories predict dissipationless spin current induced by an electric field in doped semiconductors. Nevertheless, the charge current is still dissipative in these systems. In this work, we theoretically predict the dissipationless spin Hall effect, without any accompanying charge current, in some classes of band insulators, including zero-gap ...
Murakami, Shuichi   +2 more
openaire   +3 more sources

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