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Nagoya University

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science-space1 month ago•4 min saved

Japan builds ultra-precise X-ray telescope that spots a 3.5 mm dot from 1 km

A Japanese collaboration from Nagoya University and the SPring-8 facility has developed a high-resolution X-ray telescope with nanometer-precision, seamless nickel mirrors capable of resolving a 3.5 mm object at 1 km. Ground tests used a 10‑micrometer X-ray source about 900 meters away to simulate distant starlight, and the instrument flew on the FOXSI-4 sounding rocket in 2024 to observe a solar flare, validating its performance in space. The team plans a refined version for FOXSI-5 in 2026 and aims to miniaturize the optics for CubeSats to broaden access to high-resolution X-ray observations.

via The Daily Galaxy|

#foxsi-4 #nagoya-university #science-space

health-research2 years ago•3 min saved

"Reducing Common Chemical Exposure Slows Aging, Reveals New Research"

Researchers at Nagoya University have discovered a link between aldehydes, metabolic byproducts found in alcohol, pollution, and smoke, and premature aging and DNA damage. Their findings suggest potential strategies to mitigate aging effects by controlling exposure to aldehyde-inducing substances. The study sheds light on the impact of environmental factors on health and aging, offering insights into premature aging diseases and potential targets for therapeutic intervention.

via SciTechDaily|

#aging #aldehydes #dna-damage

energy3 years ago•2 min saved

Advancements in Fuel Cell Technology: Next-Gen Membranes and Platinum Nanoclusters.

Researchers at Nagoya University in Japan have developed a new ultra-high-density sulfonic acid polymer electrolyte membrane (PEM) for fuel cells, which can be used for vehicles and combined heat and power systems. The PEM has an ultrahigh density of sulfonic acid groups, resulting in a proton conductivity of 0.93 S/cm at 80°C under 90%RH, which is six times higher than the conductivity of typical commercially available PEMs such as Nafion or Selemion under the same measurement conditions. This study will contribute to the synthesis and development of next-generation higher-performance PEMs exhibiting a good conductivity of 0.1 S/cm or higher under severe conditions.

via SciTechDaily|

#energy #fuel-cells #nagoya-university