Results 91 to 100 of about 25,768 (299)

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

open access: yesAdvanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood   +7 more
wiley   +1 more source

Assessing Rip Current Occurrences at Featureless Beaches Using Boussinesq Modeling

open access: yesJournal of Marine Science and Engineering
Rip currents at featureless beaches (i.e., beaches lacking sandbars or channels) are often hydrodynamically controlled, exhibiting intermittent and unpredictable behaviors that pose significant risks to recreational beach users.
Yuli Liu   +3 more
doaj   +1 more source

Field observations of rip current dynamics

open access: yes, 2003
Field observations of rip currents have been one of the most difficult measurements to obtain, due to the hazardous nature and the fact the rip current channels tend to migrate.
MacMahan, J.H. (author)
core  

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

open access: yesAdvanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source

Development and evaluation of a rip current forecasting system for channel-type rip currents on a low-energy headland beach

open access: yesGeomatics, Natural Hazards & Risk
A 34-day field observation was conducted on a headland beach in South China with a typical channel rip current system. The Delft3D model was applied to reproduce hydrodynamic conditions and extract rip currents, while a Generalized Additive Model (GAM ...
Yan Sun   +4 more
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Analysis and Disposal of Typical Breakdown Failure for Resin Impregnated Paper Bushing in the Valve Side of HVDC Converter Transformer

open access: yesEnergies, 2019
This paper presents analysis, diagnosis and disposal with a typical internal breakdown failure of the resin impregnated paper (RIP) valve side bushing in high voltage direct current (HVDC) converter transformer.
Hao Tang   +4 more
doaj   +1 more source

Mechanical Fatigue in Liquid‐Metal Interconnects: Failure Mechanism Analysis and Validation of Improvement Strategies

open access: yesAdvanced Materials Technologies, EarlyView.
Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal   +8 more
wiley   +1 more source

Attitudes, perceived bathing risks and behaviours among recreational users at a high-energy beach in South-West France. A dataset containing human and environmental data, beachgoers and lifeguards assessmentsDataverse

open access: yesData in Brief
The dataset provides data on beachgoers’ behaviours, attitudes and perceptions of coastal bathing risks at a high energy beach in South-West France [1].
Sandrine Lyser   +3 more
doaj   +1 more source

Addressing the International Rip Current Health Hazard [PDF]

open access: yes, 2018
Rip currents are concentrated seaward flows of water originating in the surf zone of beaches that are responsible for hundreds of injuries and fatal drownings worldwide annually.
Trimble, Sarah Margaret
core  

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