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Polar-coordinate line-projection light-curing continuous 3D printing for ultra-thin multi-material tubular structures

Researchers developed a novel 3D printing technology that can print multi-material tubular structures as thin as 50 micrometers. The technology, called Polar-coordinate Line-projection Light-curing Production (PLLP), uses a rotating mandrel and patterned light illumination to create complex structures.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateApr 30, 2024

Pore evolution secrets revealed: new study unlocks additive manufacturing potential

A new study has unlocked the secrets of pore evolution in directed energy deposition (DED) additive manufacturing, revealing five distinct processes that contribute to their behavior. The findings provide a detailed understanding of how pores form, move, and interact within the melt pool during DED, enabling targeted strategies to mini...

SourceQueen Mary University of London·JournalNature Communications·DateFeb 26, 2024

Incheon National University-Harvard University joint research team improves fuel cell durability with fatigue-resistant membranes

Researchers created a polymer electrolyte membrane with an interpenetrating network that enhances fatigue resistance and prolongs the lifespan of fuel cells. The composite membrane exhibits a lifespan of 410 hours, compared to 242 hours for the original Nafion membrane.

SourceIncheon National University·JournalAdvanced Materials·TypeExperimental study·DateFeb 6, 2024

New transactions of nonferrous metals society of china study uncovers low-temperature deformation mechanism of pure titanium

Researchers investigate grain size and temperature effects on Ti deformation at extremely low temperatures, finding that cryogenic temperatures trigger deformation twinning, boosting strength and ductility. The study proposes a modified Hall-Petch relationship to explain strengthening mechanisms at cryogenic temperatures.

SourceCactus Communications·JournalTransactions of Nonferrous Metals Society of China·TypeExperimental study·DateJan 10, 2024

Unlocking innovation: Multistable mechanical metamaterials’ evolution in design, manufacturing, and applications

Multistable mechanical metamaterials can switch between multiple stable configurations under external loading, making them reusable and efficient for quick action. Their unique properties make them promising for various engineering applications, including energy absorption, soft actuators/robots, and wave control.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateOct 10, 2023

Separating molecules requires lots of energy. This new, heat-resistant membrane could change that

A University at Buffalo-led research team has created a new, sturdier membrane that can withstand harsh environments associated with industrial separation processes. The membrane, made from an inorganic material called carbon-doped metal oxide, is a potential alternative to energy-intensive processes like distillation and crystallization.

SourceUniversity at Buffalo·JournalScience·DateSep 27, 2023

HKU Biomedical Engineering partnered with The University of Hong Kong-Shenzhen Hospital and Princeton University unveiled breakthrough in the injectable hydrogel drug delivery system for advanced medical treatment applications

Researchers developed Fibro-Gel, an injectable hydrogel with tunable release profiles and biocompatibility, addressing limitations of conventional drug delivery via hydrogel. The system promotes wound healing with accelerated rates of new tissue regeneration and de novo tissue formation.

SourceThe University of Hong Kong·JournalAdvanced Materials·TypeExperimental study·DateAug 9, 2023

TNMSC researchers create high-performance aluminum matrix composites with asymmetric cryocooling

Scientists have developed a new method to manufacture high-performance aluminum matrix composites using asymmetric cryorolling, resulting in improved mechanical properties and increased ductility. The technique produces sheets with fewer microvoids, finer grain size, and higher density of dislocations.

SourceCactus Communications·JournalTransactions of Nonferrous Metals Society of China·TypeExperimental study·DateAug 8, 2023

Helium nuclei research advances our understanding of cosmic ray origin and propagation

The CALET team, including researchers from Waseda University, found that cosmic ray helium particles follow a Double Broken Power Law, indicating spectral hardening and softening in high-energy ranges. This deviation from expected power-law distribution suggests unique sources or mechanisms accelerating and propagating helium nuclei.

SourceWaseda University·JournalPhysical Review Letters·TypeObservational study·DateMay 25, 2023

NTU Singapore scientists discover why wavy wounds heal faster than straight wounds

Researchers at Nanyang Technological University found that cells near wavy shaped wounds moved in a swirling manner, while those near straight wounds moved in straight lines. This discovery reveals that the swirling motion is crucial for gap-bridging and accelerates wound healing in wavy wounds.

SourceNanyang Technological University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMay 14, 2023

Waseda University researchers measure boron flux in high-energy cosmic rays with the CALorimetric Electron Telescope (CALET)

Researchers from Waseda University measured the energy spectrum of boron and the B/C flux ratio in high-energy cosmic rays using the CALorimetric Electron Telescope. The results indicate a different spectral index for boron compared to carbon, with implications for our understanding of cosmic ray propagation mechanisms.

SourceWaseda University·JournalPhysical Review Letters·TypeObservational study·DateJan 26, 2023

NTU Singapore scientists convert waste paper into battery parts for smartphones and electric vehicles

Researchers at Nanyang Technological University have developed a technique to convert waste paper into lithium-ion battery electrodes, reducing greenhouse gas emissions and increasing durability. The new method uses carbonisation and laser cutting to create reusable batteries with superior properties.

SourceNanyang Technological University·JournalAdditive Manufacturing·TypeExperimental study·DateNov 22, 2022

Cornell, US Navy raise bar for autonomous underwater imaging

Researchers at Cornell University have developed a new algorithm for autonomous underwater sonar imaging that significantly improves speed and accuracy for identifying objects such as explosive mines and sunken ships. The new approach, called informative multi-view planning, integrates information about object locations with sonar proc...

SourceCornell University·JournalIEEE Journal of Oceanic Engineering·DateMay 26, 2022

Korea Maritime and Ocean University scholars find key to reducing defects in multimaterials

Researchers from Korea Maritime and Ocean University have developed a way to synthesize high-performance functionally graded materials with minimized defects. By controlling the mixing gradient of component materials, they improved mechanical properties and eliminated interfacial cracks.

SourceNational Korea Maritime and Ocean University·JournalJournal of Materials Research and Technology·TypeExperimental study·DateMay 18, 2022

Numerical model of butterfly flight dynamics

A team of researchers from Shinshu University has developed a precise numerical model of butterfly flight dynamics, revealing the intricate relationship between wing movement and air flow. The study's findings have significant implications for designing micro air vehicles (MAVs), which could lead to breakthroughs in aerospace engineering.

SourceShinshu University·JournalBiology Open·TypeImaging analysis·DateFeb 14, 2022

Super-elastic high-entropy Elinvar alloy discovered with potential for aerospace engineering

Researchers at City University of Hong Kong have discovered a super-elastic high-entropy Elinvar alloy that retains its stiffness even after being heated to 1000 K. The alloy's unique structure and chemical composition allow it to store a large amount of elastic energy, making it suitable for high-precision devices in aerospace enginee...

SourceCity University of Hong Kong·JournalNature·TypeExperimental study·DateFeb 9, 2022

New tool can detect a precursor of engine-destroying combustion instability

A team of scientists from Tokyo University of Science has developed a machine learning-based tool to predict thermoacoustic oscillations in engines. The tool uses dynamical systems theory and can classify combustion into three states, identifying pressure fluctuations that indicate future combustion oscillations.

SourceTokyo University of Science·JournalAIAA Journal·TypeComputational simulation/modeling·DateNov 18, 2021

Nanotwinned titanium forges path to sustainable manufacturing

Researchers at Lawrence Berkeley National Laboratory have discovered a new path forward for processing titanium. Cryo-forging at ultra-low temperatures produces extra-strong nanotwinned titanium with improved strength and ductility. The material maintains its structure and properties at extreme temperatures, demonstrating its versatility.

SourceDOE/Lawrence Berkeley National Laboratory·JournalScience·TypeExperimental study·DateOct 20, 2021

A computationally quick approach to predict molten droplet solidification on a solid surface

Researchers from Tokyo University of Science developed a computationally quick approach to predict molten droplet solidification on a solid surface. The model simulates the solidification process by considering the droplet behavior and heat transfer between the hotter droplet and cooler surface, replicating experiments with high accuracy.

SourceTokyo University of Science·JournalInternational Journal of Heat and Mass Transfer·TypeComputational simulation/modeling·DateOct 12, 2021