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Search results for “High-Energy”

1,000+ results for "High-Energy"

Let the europium shine brighter

Researchers at Hokkaido University developed a stacked nanocarbon antenna that makes europium shine brighter than previous designs, with potential to create more efficient photosensitizers. The new design uses low-energy blue light absorption, reducing energy loss and enabling photodynamic therapy applications.

SourceHokkaido University·JournalCommunications Chemistry·DateJan 21, 2020

'Like a video game with health points,' energy budgets explain evolutionary body size

A new model of animal energy budgets reveals that resource variation is a key mechanism driving evolutionary body size. By considering factors such as metabolism, reproduction costs, and offspring energy delivery, the model shows that larger bodies provide more room for energy storage, helping animals survive uncertain environments.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateDec 18, 2019

Saving bats from wind turbine death

A survey of stakeholders in the wind energy field reveals a consensus on prioritizing biodiversity protection over climate change concerns. Stakeholders agree that measures to make wind energy production ecologically sustainable should be taken, with most suggesting increased research and improved efficiency.

SourceAmerican Institute of Physics·JournalJournal of Renewable and Sustainable Energy·DateNov 26, 2019

Hot electrons harvested without tricks

Scientists have found a way to harness excess energy from photons that are too energetic for materials to absorb, potentially increasing the efficiency of solar panels. By combining a perovskite with an acceptor material, hot electrons can be readily absorbed, even without slowing down their loss of energy.

SourceUniversity of Groningen·JournalScience Advances·DateNov 15, 2019

How preprocessing methods affect the conversion efficiency of biomass energy production

A new study published in Bioresource Technology Reports examines the impact of biomass preprocessing on conversion efficiency. Researchers found that comminution and particle size play a significant role in determining energy expenditure, with miscanthus showing improved efficiency under certain conditions.

Quantum vacuum: Less than zero energy

A research team investigated the possibility of negative energy in quantum physics, finding that while energy can be less than zero under certain conditions, it must be paid back. The study placed tight bounds on negative energy and connected it to quintessential properties of quantum mechanics.

SourceVienna University of Technology·JournalPhysical Review Letters·DateOct 2, 2019

Energy from seawater

The Stanford group's battery captures blue energy by releasing sodium and chloride ions, then reincorporating them through rapid wastewater and seawater exchanges. The technology has shown 97% effectiveness in capturing salinity gradient energy over 180 cycles.

SourceStanford University·JournalACS Omega·DateJul 29, 2019

Danish researchers create worldwide solar energy model

Researchers at Aarhus University have developed an historically accurate solar energy model with global, regional and local level performance data made available via open license. The model will help in optimizing future sustainable energy systems by analyzing photovoltaic installations.

SourceAarhus University·JournalProgress in Photovoltaics Research and Applications·DateJul 1, 2019

The brain consumes half of a child's energy -- and that could matter for weight gain

A new paper suggests that variation in brain energy expenditure during childhood may influence patterns of energy expenditure and weight gain. The study proposes a hypothesis linking the brain's energy demand to obesity risk, highlighting the need for further research into the role of brain development on body weight.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateJun 17, 2019

Using DNA templates to harness the sun's energy

A team of researchers at Arizona State University has made significant progress in optimizing artificial photosynthesis systems that mimic the first stage of photosynthesis. They have developed a way to use DNA to self-assemble structures that capture and transfer energy over long distances with high efficiency.

SourceArizona State University·JournalJournal of the American Chemical Society·DateApr 25, 2019

Guiding the way to a more sustainable energy future

The Lehigh University Energy Research Center is working to develop innovative solutions for managing traditional power plants and developing cost-effective alternative energy sources. The center, in partnership with the Mexican Institute for Electricity and Clean Energies, is studying the use of solar thermal energy to improve CO2 capt...

Widespread decrease in wind energy resources found over the Northern Hemisphere

A new study reveals a significant decline in wind energy resources over the Northern Hemisphere, with 30-80% of stations losing wind power potential since 1979. Climate models are found to be inadequate in simulating long-term wind energy changes, underscoring the need for careful consideration when using GCM-based projections.

Modelling a future fuelled by sustainable energy

Researchers at the University of Adelaide modelled the transition to a sustainable energy future, examining the relative productivity of fossil fuels and renewables. The study shows that fuel productivity determines the viability of renewable energy and how economies will transition from fossil fuels to sustainable sources.

SourceUniversity of Adelaide·JournalEconomic Modelling·DateOct 29, 2018

Energy-insecure New Yorkers face multiple health risks

A study by Columbia University's Mailman School of Public Health found that nearly one-third of Washington Heights residents experienced energy insecurity, leading to breathing problems, mental health issues, and poor sleep. Energy-insecure households were more likely to have children under 18 years of age and lower household income.

SourceColumbia University's Mailman School of Public Health·JournalEnergy Research & Social Science·DateOct 5, 2018