Results 81 to 90 of about 119,054 (285)

TDR Fingerprint on long Land and Submarine Power Cables

open access: yes, 2023
TDR (time domain reflectometry) has proven to be a very useful tool for preventive maintenance as well as for fault location. This paper points out the limitations of TDR techniques for very long cables, and illustrates how, with professional expertise ...
Marco Brambilla   +4 more
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Validating SCUBAS Predictions of Geomagnetically Induced Voltage in Submarine Cables Using Legacy Superstorm Observations

open access: yesSpace Weather
Modern submarine communication cables, though fiber‐optic in nature, remain vulnerable to space weather hazards due to their internal conductive cables used for powering repeaters.
S. Chakraborty   +7 more
doaj   +1 more source

Autonomous Folding of Soft Matter From Living Polymers

open access: yesAdvanced Materials, EarlyView.
Origami structures are endowed with “living” polymer creases that grow, remodel, and stiffen in response to nutrient solutions. This post‐fabrication growth enables autonomous folding, iterative regrowth, and mechanical tuning involving origami assemblies, such as cranes, Miura‐ori tessellations, rigid and non‐rigid square‐twist patterns, establishing ...
Jiahe Huang   +6 more
wiley   +1 more source

Nonlinear hybrid-mode resonant forced oscillations of sagged inclined cables at avoidances [PDF]

open access: yes, 2007
We investigate non-linear forced oscillations of sagged inclined cables under planar 1:1 internal resonance at avoidance. To account for frequency avoidance phenomena and associated hybrid modes actually distinguishing inclined cables from horizontal ...
Rega, Giuseppe, Srinil, Narakorn
core   +2 more sources

Data‐Driven Materials Science for Energy‐Sustainable Applications

open access: yesAdvanced Materials, EarlyView.
Data‐driven approaches powered by artificial intelligence are transforming materials discovery for energy sustainability. This review examines how auto‐generated high‐quality materials databases and domain‐specific language models accelerate research in photovoltaics, thermoelectrics, batteries and magnetic materials. Applications involve extraction of
Jacqueline M. Cole
wiley   +1 more source

Research on identification method of abnormal grounding circulating current in single‐core AC submarine cable

open access: yesIET Generation, Transmission & Distribution
The grounding circulation current of the sheath and armour of single‐core AC submarine cables is high during operation, which can easily cause insulation damage and faults.
Yuxin Yang   +3 more
doaj   +1 more source

Ion Concentration and Voltage Imaging With Fluorescent Nanodiamonds

open access: yesAdvanced Materials, EarlyView.
We demonstrate reversible switching between the fluorescent NV0 and the dark NV+ state, in sub‐30 nm FNDs via surface oxidation and hydrogenation, respectively. In an electrochemical cell, we show that the fluorescence from hydrogenated particles enables all‐optical imaging of voltages and ion concentrations at the micrometer scale.
Patrick Voorhoeve   +8 more
wiley   +1 more source

Penetration of ship anchors and the influence of submarine cables

open access: yes, 2018
Impacts by ship anchors are one of the main reasons for damage to submarine cables. Regulations meet this risk by defining a minimum permanent burial depth of submarine cables.
Grabe, Jürgen, Heins, Evelyn
core   +1 more source

Research on Global International Communication Submarine Cable Policy Trends

open access: yesGuangtongxin yanjiu
International submarine cables are a global public infrastructure that connects the information and communication networks of various countries. In recent years, the demand for their construction and the associated security risks have both been on the ...
ZHAO Li, MU Chunbo
doaj  

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