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Pulsed field ablation procedures found safe and effective for atrial fibrillation patients

A recent study published in Nature Medicine has shown that pulsed field ablation (PFA) is a safe and effective treatment for patients with atrial fibrillation. The study analyzed over 17,600 patients and found no significant risk of esophageal damage or other complications, increasing confidence in the use of PFA technology.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNature Medicine·TypeObservational study·DateJul 8, 2024

Why do you keep your house so cold? Science says: Ask your parents

A study published in PLOS Climate found that childhood home temperatures and community connectedness can help predict how U.S. residents set their thermostats. The researchers surveyed 2,128 participants and found that those who grew up in cold-winter locales tend to dial up their thermostats higher than those raised in warmer homes.

SourcePLOS·JournalPLOS Climate·TypeSurvey·DateJul 3, 2024

Towards cleaner energy: Breakthrough in anode electrode materials for proton conducting solid oxide fuel cells operating at medium temperature

Researchers have developed a novel perovskite-based anode material with mixed hole–proton conduction, achieving high efficiency at low and medium temperatures. The breakthrough could pave the way for important technological advancements in energy technologies.

SourceTokyo University of Science·JournalJournal of the Physical Society of Japan·TypeExperimental study·DateJun 20, 2024

Geothermal model gives key insights into extracting renewable energy from superhot, super deep rock

Researchers have developed a computer model that sheds light on extracting renewable energy from superhot, super deep rock. The model shows the formation of microscopic cracks creating a dense 'cloud of permeability' throughout the affected rock, which can lead to higher power delivery and efficiency.

SourceScience Communications·JournalGeothermal Energy·TypeComputational simulation/modeling·DateJun 13, 2024

New technique could help build quantum computers of the future

Researchers have developed a method to create and control optical qubits in silicon with high precision, enabling the fabrication of reliable quantum computers. This breakthrough could advance quantum computing and networking capabilities, paving the way for breakthroughs in human health, drug discovery, and artificial intelligence.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Communications·TypeExperimental study·DateJun 11, 2024

Expanding on the fundamental principles of liquid movement

Kyushu University researchers generalize fluid dynamics of volatile liquids using mathematical modeling and experimentation. Their findings can lead to more efficient product development in various liquid-based industries, including high-end electronics manufacturing and lab-on-a-chip disease diagnosis.

SourceKyushu University·JournalJournal of Fluid Mechanics·TypeExperimental study·DateMay 20, 2024

Shedding light on perovskite hydrides using a new deposition technique

Researchers develop a new method to grow single-crystal perovskite hydrides, allowing for accurate measurement of intrinsic H- conductivity. The technique enables the production of high-quality crystals with minimal imperfections, paving the way for sustainable energy technologies and hydrogen storage applications.

SourceShibaura Institute of Technology·JournalACS Applied Energy Materials·TypeExperimental study·DateMay 16, 2024

Wind farms can offset their emissions within two years, new study shows

A new study published in the Journal of the Royal Society of New Zealand found that wind farms can offset their carbon emissions within two years. The research used data from a Harapaki onshore wind farm in Hawke's Bay, New Zealand, and found that the turbine can generate all the energy consumed across its life-cycle within six months.

SourceTaylor & Francis Group·JournalJournal of the Royal Society of New Zealand·DateMay 16, 2024

Hydrogen recombination found to be most plausible explanation for high levels of energy in stellar superflares

Researchers analyzed 42 superflares using two models and concluded that hydrogen recombination is the most physically plausible explanation for high levels of energy. This model is supported by flare processes described in solar flares, which are well-studied phenomena.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalMonthly Notices of the Royal Astronomical Society·DateApr 15, 2024

A high-boost and high-efficiency DC power converter

The new circuit design uses resonant tank circuits to store energy during switching periods, reducing losses and increasing efficiency. It also employs a planar transformer for compactness and good thermal performance. The prototype achieved an unprecedented 91.3% energy efficiency and reduced electromagnetic noise.

SourceKobe University·JournalIEEE Transactions on Power Electronics·TypeExperimental study·DateApr 1, 2024

Aluminum nanoparticles make tunable green catalysts

Rice University researchers have developed a transformative approach to harnessing the catalytic power of aluminum nanoparticles by annealing them in various gas atmospheres at high temperatures. This allows for modifying the structure of the oxide layer, making the nanoparticles versatile tools for different applications.

SourceRice University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMar 5, 2024

Positronium laser cooling

Researchers successfully cooled positronium atoms to record-low temperatures of 170 K, significantly reducing their transverse velocity component. This achievement has far-reaching implications for precision spectroscopy and the study of quantum electrodynamics.

SourcePolitecnico di Milano·JournalPhysical Review Letters·TypeObservational study·DateFeb 27, 2024

Diamonds are a chip's best friend

Researchers at Kyoto University have determined the magnitude of spin-orbit interaction in acceptor-bound excitons in a semiconductor. The study revealed two triplets separated by a spin-orbit splitting of 14.3 meV, supporting the hypothesis that two positively charged holes are more strongly bound than an electron-and-hole pair.

SourceKyoto University·JournalPhysical Review Letters·TypeExperimental study·DateFeb 27, 2024

Core-shell ‘chemical looping’ boosts efficiency of greener approach to ethylene production

Researchers have developed a new catalyst that exceeds 30% yield for the production of ethylene through oxidative coupling of methane, a more sustainable and economically viable method. The core-shell Li2CO3-coated mixed rare earth oxides catalyst enables sequential oxygen switching, replenishing its ability to provide oxygen for the r...

SourceLehigh University·JournalNature Communications·DateJan 12, 2024

KAUST scientists unveil blueprint for affordable solar cells to power Saudi Arabia and beyond

Researchers at KAUST Solar Center have developed a roadmap for commercializing perovskite/silicon tandem solar cells, which combine efficient light absorption and long-term stability. The technology has the potential to meet Saudi Arabia's solar targets and exceed $10 billion in market value within a decade.

Pioneering diamond manufacturing: Enhancing efficiency and precision with energy beam-based direct and assisted polishing techniques

Energy beam-based direct and assisted polishing technologies for diamonds improve surface quality and material removal rates, overcoming limitations of traditional methods. Researchers analyzed four latest polishing techniques, including laser polishing, ion beam polishing, plasma-assisted polishing, and laser-assisted polishing.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateDec 21, 2023