Results 101 to 110 of about 56,166 (296)

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

open access: yesAdvanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang   +5 more
wiley   +1 more source

Electrical inspection mark of UHV transmission line based on GaN material

open access: yes工程科学学报, 2018
At present, the traditional insulated pole electroscope is used for electrical inspection in high-voltage transmission lines. However, when it is used in ultra-high voltage (UHV) transmission lines, the length of its insulated rod is large, and there are
CHEN Kang   +7 more
doaj   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

open access: yesAdvanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño   +5 more
wiley   +1 more source

Autonomous Inspection Robot for Power Transmission Lines Maintenance While Operating on the Overhead Ground Wires [PDF]

open access: yes, 2010
This paper describes the development of a mobile robot capable of clearing such obstacles as counterweights, anchor clamps, and torsion tower. The mobile robot walks on overhead ground wires in 500KV power tower.
Yi Ruan, Zheng Li
core   +1 more source

Neutron Reflectometry and Compression of Graded Hydrogel Surfaces

open access: yesAdvanced Materials Interfaces, EarlyView.
Highly‐entangled and covalently‐crosslinked hydrogels with thin and thick surface gel layers are compressed in neutron reflectometry experiments. Surface gel layer thickness dictates the extent to which the polymer network at the surface of a hydrogel collapses, while crosslinking chemistry, and therefore elastic modulus, impacts the pressure at which ...
Kathryn E. Shaffer   +12 more
wiley   +1 more source

Design of a prototype power line inspection robot [PDF]

open access: yes, 2013
The purpose of this paper is to provide the design of a prototype power line inspection robot for the monitoring of Eskom transmission lines. It should also determine if an inspection robot would be a feasible solution to aid Eskom in monitoring their ...
Du Plessis, N.W., Gouws, R.
core  

An Enhanced Single-Stage Neural Network for Object Detection in Transmission Line Inspection [PDF]

open access: yes
To address the issue of human object detection in transmission line inspection, an enhanced single-stage neural network is proposed, which is based on the improvement of the YOLOv7-tiny model.
Changyu Cai   +5 more
core   +1 more source

Obstacle performance analysis for a novel inspection robot with passive joints [PDF]

open access: yes, 2011
To complete the power transmission line inspection task successfully, the inspection robot has to cross dampers, splicing sleeves and other obstacles installed in the line quickly and smoothly.
Wang HG(王洪光)   +5 more
core   +1 more source

A Lightweight Convolutional Neural Network for Edge Computing-Oriented Transmission Line Defect Recognition

open access: yesIEEE Access
Power transmission line inspection is crucial for ensuring the reliability of electrical infrastructure. However, manual inspection methods pose significant safety risks and are often inefficient.
He Su, Kui Li, Zhenzhou Wang
doaj   +1 more source

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