Results 131 to 140 of about 30,327 (212)

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

Bending Characteristics of Hybrid Fiber Concrete Beams Reinforced with Steel–GFRP Hybrid Rebars

open access: yesBuildings
The current study aims to investigate the effect of using hybrid bars on the bending characteristics of hybrid fiber-reinforced concrete (FRC) beams. For this purpose, a series of flexural tests on FRC beams were conducted. Four FRC beams were fabricated,
Aref Abadel   +5 more
doaj   +1 more source

Investigation of the strength and toughness of FRHPC after exposure to high temperature [PDF]

open access: yes, 2008
The investigations on different fibre influences on the compressive strength, the flexural strength and ductility as well as failure pattern of fiber reinforced high-performance concrete (FRHPC) after exposure to various high temperature were carried out.
Jalali, Said   +2 more
core  

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

open access: yesAdvanced Science, Volume 13, Issue 19, 2 April 2026.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong   +5 more
wiley   +1 more source

Recent Developments in Sustainable Composites for Printed Circuit Boards (PCBs): A Review

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.
This review presents the potential of using natural plant fibers and biodegradable polymers as sustainable printed circuit boards (PCBs). This review provides future directions in innovation and sustainable PCBs development. Bio‐composites PCBs are both environmentally friendly and sustainable due to the natural fibres they contain.
Erdem Selver   +7 more
wiley   +1 more source

Effect of Metal Oxide Fillers on the Thermo‐Mechanical and Physical Properties of Kenaf–Carbon Fiber Epoxy Hybrid Composites

open access: yesSPE Polymers, Volume 7, Issue 2, April 2026.
Thermo‐mechanical enhancement of Kenaf/carbon epoxy composites. ABSTRACT This study analyzes the effect of MgO, Al2O3, and TiO2 metal oxide fillers on the physico‐mechanical and thermal behavior of kenaf/carbon fiber‐reinforced epoxy hybrid composites.
Ishrak Ibn Zahid   +4 more
wiley   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Optimal Accelerated Life Testing Design Under Constrained Resources Using Double Deep Q‐Learning

open access: yesQuality and Reliability Engineering International, Volume 42, Issue 3, Page 980-991, April 2026.
ABSTRACT Accelerated life tests (ALTs) are essential tools for estimating product reliability under high‐stress conditions, allowing failure data to be collected in reduced timeframes. However, planning effective ALT configurations is a complex task that requires selecting stress levels, test durations, and unit allocations while accounting for limited
Allan Jonathan da Silva   +3 more
wiley   +1 more source

Anisotropic Cellular Forces Drive Hexagonal‐to‐Tetragonal Tiling Transitions in the Drosophila Eye

open access: yesDevelopment, Growth &Differentiation, Volume 68, Issue 3, April 2026.
ABSTRACT Tile patterns are fundamental organizational principles of multicellular epithelial tissues. The Drosophila compound eye provides a striking example, in which ommatidia are arranged in a highly regular hexagonal lattice, while tetragonal patterns emerge in specific small‐eye mutants.
Ting Zheng   +4 more
wiley   +1 more source

Electrospun Nanofibres for Load‐Bearing Composite Materials—A Review of Techniques, Mechanical Properties and Durability

open access: yesPolymer Composites, Volume 47, Issue 5, Page 3917-3945, 10 March 2026.
Electrospun nanofibre for load‐bearing composite materials. ABSTRACT Electrospun nanofibres are emerging nanomaterials prized for their scalability, high surface area to volume ratio and yield. Their effectiveness in improving the mechanical properties of fiber reinforced composites is widely reported. Nanofibres could activate multiscale toughness and
Usaid Ahmed Shakil, Petr Hájek
wiley   +1 more source

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