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Chinese researchers report integrated robot system for ultrasound-guided prostate percutaneous intervention

A new robot system enables automatic insertion of needles for prostate diagnosis and treatment, reducing trauma and improving success rates. The 8-joint robot uses a parallel structure for precise control and can be calibrated using particle swarm optimization.

SourceHigher Education Press·JournalFrontiers of Mechanical Engineering·TypeComputational simulation/modeling·DateApr 13, 2022

Inferring the size of a collective of self-propelled Vicsek particles from the random motion of a single unit

Researchers at NYU Tandon School of Engineering propose a paradigm to solve the problem of inferring collective size from individual behaviors. By observing self-propelled Vicsek particles, they show that the time rate of growth of mean square heading is sufficient to predict the number of particles under particular parameters.

SourceNYU Tandon School of Engineering·JournalCommunications Physics·TypeData/statistical analysis·DateApr 11, 2022

How do waves form in the sea?

Tel Aviv University researchers develop innovative model that explains wave formation, tested in complex experiments. The model takes into account all unstable harmonics and limitations of previous models, providing high reliability for describing physical situation.

SourceTel-Aviv University·JournalPhysical Review Letters·DateApr 10, 2022

Multi-functional electrostatic droplet tweezer remotely guides droplet motion

A research team from City University of Hong Kong developed a multi-functional electrostatic droplet tweezer that can precisely trap and remotely guide liquid droplets on flat and tilted surfaces, as well as in oil mediums. The technology offers precise and programmable droplet manipulation with high velocity and agile direction steering.

SourceCity University of Hong Kong·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 1, 2022

Scientists develop environmentally safe, frost-resistant coatings

Scientists at the University of Illinois Chicago have created a new family of environmentally safe, frost-resistant coatings that can delay the formation of frost for extended hours. These coatings can be applied to various surfaces without preconditioning or expensive surface treatments, reducing pollution and ice-related problems.

SourceUniversity of Illinois Chicago·JournalAdvanced Materials·TypeExperimental study·DateMar 31, 2022

New study shows spiders use webs to extend their hearing

Researchers at Binghamton University discovered that orb-weaving spiders use their webs as extended auditory arrays to capture sounds, allowing them to detect prey and predators. The study found that the spiders can respond to sound levels as low as 68 decibels and localize sound sources with 100% accuracy.

SourceBinghamton University·JournalProceedings of the National Academy of Sciences·DateMar 29, 2022

Study: With masking and distancing in place, NFL stadium openings in 2020 had no impact on local Covid-19 infections

Researchers found that opening stadiums to fans with safety protocols in place did not lead to an increase in local Covid case counts. The study used synthetic control method to analyze data from 16 stadiums, which mirrored the trajectory of surrounding counties without stadiums.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateMar 23, 2022

Leveraging AI to work with cells

Researchers at Northwestern University developed an AI-assisted Nanofountain Probe Electroporation system to engineer stem cells. The new method reduces cell loss and increases throughput, enabling selective manipulation of individual cells in micro-arrays.

SourceNorthwestern University·JournalSmall·TypeExperimental study·DateMar 22, 2022

New research from Pusan National University sheds light on nature of friction in multi-layered graphene

A study by researchers at Pusan National University has investigated the relationship between surface structures and nanoscale friction in multi-layered CVD graphene. They found that only the top-most layer of graphene was twisted with respect to the rest, affecting layer-dependent nanoscale friction.

SourcePusan National University·JournalApplied Surface Science·TypeExperimental study·DateMar 9, 2022

Are urban railways in Tokyo on the right track? Researchers from Japan attempt to answer

Researchers from Shibaura Institute of Technology analyzed 18 Tokyo Metropolitan Area railway lines to understand the impact of in-vehicle congestion on efficiency. They found that incorporating congestion rates into efficiency analysis can help develop better public transit strategies, leading to higher service levels and sustainability.

SourceShibaura Institute of Technology·JournalTransport Policy·TypeObservational study·DateMar 2, 2022

Researchers at the GIST develop design scheme for fiber reinforced composites

Researchers at GIST have developed a new approach for designing fiber reinforced composites, which can simultaneously optimize the macrostructure and microscale fiber densities. This method, based on multiscale topology optimization, enables the creation of functionally graded composites with improved strength-to-weight ratios, benefit...

SourceGIST (Gwangju Institute of Science and Technology)·JournalComposite Structures·TypeComputational simulation/modeling·DateFeb 24, 2022

The power of chaos: a robust and low-cost cryptosystem for the post-quantum era

A team of researchers from Ritsumeikan University developed an unprecedented stream cipher using chaos theory to create highly secure cryptographic systems. The new system is resistant to statistical attacks and eavesdropping, even against quantum computers, making it a promising solution for post-quantum era cryptosystems.

SourceRitsumeikan University·JournalIEEE Transactions on Circuits and Systems·TypeComputational simulation/modeling·DateFeb 1, 2022

NYU Tandon professor examines the issue of battery recyclability

A new study by NYU Tandon professor Nikhil Gupta explores the recyclability of lithium-ion and lead-acid batteries, highlighting the need for a circular economy approach. While lead acid batteries have a high recycling efficiency, lithium-ion batteries pose significant challenges due to their rapidly evolving chemistry and cell design.

SourceNYU Tandon School of Engineering·JournalJournal of the Indian Institute of Science·TypeSurvey·DateFeb 1, 2022

Geoff Wehmeyer wins CAREER Award

Geoff Wehmeyer has been awarded a National Science Foundation CAREER Award to deepen understanding of nanoscale heat transfer and improve device performance. He will use scanning transmission electron microscopy nano-thermometry experiments to better understand interfacial heat transport.

CityU new structured thermal armour achieves liquid cooling above 1,000°C; solves challenge presented by Leidenfrost effect since 1756

Researchers have designed a novel thermal armour that successfully inhibits the Leidenfrost effect up to 1,150°C and achieves efficient liquid cooling across a wide temperature range. The breakthrough has significant implications for applications in aerospace, space engineering, and next-generation nuclear reactors.

SourceCity University of Hong Kong·JournalNature·TypeExperimental study·DateJan 26, 2022

An all-in-one approach to diabetes treatment

Researchers at MIT have developed an all-in-one approach to diabetes treatment, streamlining the process of blood glucose measurement and insulin injection. The new device can automate procedures such as pricking skin, collecting blood, calculating glucose levels, and dispensing insulin, reducing the need for multiple devices and makin...

SourceMassachusetts Institute of Technology·JournalJournal of Controlled Release·DateJan 20, 2022

Listening to the leaves: Adding bioinspired veins to foamed polymers

A research team at the Beckman Institute for Advanced Science and Technology developed a chemical process to mimic trees' vascular systems in foamed polymers, adding structure and enabling directional fluid transport. The team discovered that increasing or decreasing gelation time enables direct control over the foam's cellular structure.

SourceBeckman Institute for Advanced Science and Technology·JournalAdvanced Materials·TypeExperimental study·DateJan 12, 2022

Pusan National University study “cracks” mystery of water-promoted fracture growth on glass

Researchers at Pusan National University discovered that tempered glass is more resistant to water-promoted fracture growth than annealed glass. The study found that water droplets penetrate microcracks in glass surfaces, dissolving silicon-oxygen bonds and degrading mechanical strength.

SourcePusan National University·JournalJournal of the European Ceramic Society·TypeExperimental study·DateJan 12, 2022

Development of rapid and simultaneous diagnosis of COVID-19/influenza diseases by manipulating microfluidic flow with a microfluidic chip

Researchers developed a microfluidic chip for rapid and simultaneous diagnosis of COVID-19 and influenza diseases, achieving results within 30 minutes. The device uses the LAMP method for genetic amplification and has potential applications in various fields beyond human infectious diseases.

SourceToyohashi University of Technology (TUT)·JournalLab on a Chip·TypeExperimental study·DateJan 4, 2022

Nanotube fibers stand strong -- but for how long?

Researchers at Rice University found that carbon nanotubes and their fibers experience fatigue under cyclic loads, leading to slippage and strain accumulation. The fibers' endurance limit is around 30%-50% of their tensile strength, allowing them to last practically forever.

SourceRice University·JournalScience Advances·TypeComputational simulation/modeling·DateDec 22, 2021