Results 181 to 190 of about 376,467 (387)

Enhanced Actuation Stress in Variable Stiffness Liquid Crystal Elastomers

open access: yesAdvanced Intelligent Systems, EarlyView.
Liquid crystal elastomers (LCEs) filled with low‐melting‐point alloy particles exhibit a fivefold increase in actuation stress and tunable stiffness. At low filler concentrations, mechanically enhanced network entropy boosts force output, while higher concentrations enable variable stiffness. This composite design mimics muscle‐like behavior, advancing
Sophia Eristoff   +2 more
wiley   +1 more source

Poligromorph Materials: Shape Morphing Functional Polyvinyl Alcohol/Maleic Anhydride Ethylene‐Propylene/Carbon Composites in Aqueous and Hydrocarbon‐Based Media

open access: yesAdvanced Intelligent Systems, EarlyView.
Hygromorphic materials, such as pinecone scales, respond to humidity changes. This study presents poligromorphic composites—composed of carbon fibers (CFs), polyvinyl alcohol (PVA), and maleic anhydride ethylene‐propylene (MA‐EPR)—that react to water, humidity, and hydrocarbons.
Liia Buhhanevits   +4 more
wiley   +1 more source

Effects of seawater and deionized water at 0 to 80 deg C on the flexural properties of a glass/epoxy composite [PDF]

open access: yes
The effect on the flexural properties of a glass/epoxy composite of immersion in deionized water or seawater at 0, 25, and 80 C for 451 hr was examined.
Clemons, J. M.   +6 more
core   +1 more source

Carcinoma of the hepatic flexure [PDF]

open access: yesCancer, 1955
John W. Phillips   +2 more
openaire   +3 more sources

4D Printing of Polyethylene Glycol‐Grafted Carbon Nanotube‐Reinforced Polyvinyl Chloride–Polycaprolactone Composites for Enhanced Shape Recovery and Thermomechanical Performance

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces polyethylene glycol‐functionalized carbon nanotubes (CNTs) to enhance dispersion, interfacial bonding, and 4D printability in polyvinyl chloride‐PCL nanocomposites. The optimized 4D composite (0.5 wt% CNT) achieves a 25% increase in tensile strength, 95.78% shape fixity, and 5‐s recovery time.
Davood Rahmatabadi   +6 more
wiley   +1 more source

Challenges and Opportunities in Combining Ultrasound and Inductive Coupling for Energy Supply and Bidirectional Data Exchange in Bioelectronics Medicine Implant Networks

open access: yesAdvanced Intelligent Systems, EarlyView.
In this contribution, it is shown that miniaturized nerve stimulation implants can be used in collaborative networks. Inductive links and ultrasound are combined to supply these implants with energy and data; the advantages and disadvantages of each method, as well as safety risks and possibilities for improvement are discussed and the best ...
Benedikt Szabo   +5 more
wiley   +1 more source

FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS WITH HIGH STRENGTH DEFORMED BARS

open access: bronze, 1965
Yoshiji Matsumoto   +4 more
openalex   +2 more sources

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