Results 71 to 80 of about 6,971 (185)

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

open access: yesJournal of Polymer Science, EarlyView.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba   +4 more
wiley   +1 more source

Sambungan Lentur Sebagai Penahan Benturan Dua Gedung Tinggi Yang Dibangun Berdampingan [PDF]

open access: yes, 2011
Flexible Connection Elastomeric Rubber as a Pounding Resisting Element between Two Adjacent Buildings To solve pounding problem of two adjacent buildings, structural designer usually employs a dilatation between the structures or make the two structures ...
Lase, Y. (Yuskar), Oetomo, J. J. (James)
core  

From 0D to 3D liquid crystal elastomers architectures: Fabrications and applications

open access: yesResponsive Materials, EarlyView.
This review presents a dimension‐oriented overview of liquid crystal elastomers (LCEs), highlighting their molecular alignment, fabrication strategies, and programmable deformations from 0D particles to 3D architectures. Emphasis is placed on how dimensionality guides design principles, enables diverse actuation modes, and bridges fundamental ...
Mingxuan Liu   +8 more
wiley   +1 more source

Ageing of Natural Rubber under Stress

open access: yes, 2000
We report a dynamical-mechanical study of stress relaxation at small deformation in a natural (polyisoprene) rubber well above its glass transition temperature Tg. We find that an almost complete relaxation of stress takes place over very long periods of
Clarke, S. M.   +2 more
core   +1 more source

Conductive Hydrogel‐Enabled Electrode for Scalp Electroencephalography Monitoring

open access: yesSmall Methods, EarlyView.
Conductive hydrogels are emerging as effective EEG electrode‐scalp interfaces to overcome hair barriers. This review presents the demanding parameters for hair‐compatible hydrogel electrodes and summarizes their applications in healthcare and brain‐computer interfaces.
Zichong Ji   +14 more
wiley   +1 more source

Screw- and nail-gluing techniques for wood composite structures [PDF]

open access: yes, 2007
Composite systems enhance the structural capacity and reliability of wood solutions for structures. With today engineered wood products and structural adhesives, high performing structures can be constructed.
Crews, K, Gerber, C, Sigrist, C
core  

Particle swarm optimization with sequential niche technique for dynamic finite element model updating [PDF]

open access: yes, 2014
Peer ...
Abdel-Ghaffar   +74 more
core   +1 more source

Study of the Thermal and Hydrothermal Aging Effects on the Properties of 3D‐Printed Thermoplastic Polyurethane

open access: yesJournal of Vinyl and Additive Technology, EarlyView.
Effect of post‐aging conditions on mechanical and thermal properties of FDM‐printed parts. ABSTRACT In this study, the thermal and hydrothermal aging of TPU produced with the FDM technique was simulated and subjected to a series of tests. The alterations in the internal structures of the samples that had been subjected to tensile, hardness, adhesive ...
Busra Eyri   +3 more
wiley   +1 more source

The Patient‐Centred Interdental Cleaning Concept—Consensus Based on a Round Table

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim To consolidate clinical and scientific evidence and develop personalised recommendations for the optimal use of interdental devices, addressing the diverse needs of patients with varying oral health conditions based on the outcomes of an expert meeting.
Tim M. J. A. Thomassen   +9 more
wiley   +1 more source

Experimental and analytical tools for evaluation of Stirling engine rod seal behavior [PDF]

open access: yes
The first year of a two year experimental and analytical program is reported. The program is directed at the elastohydrodynamic behavior of sliding elastomeric rod seals for the Stirling engine.
Cheng, H. S., Krauter, A. I.
core   +1 more source

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