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Hard or soft: At the touch of a button

Researchers have created a new metallic high-performance material that can switch between strong and brittle behavior and soft and malleable states at the touch of a button. The discovery, made by Prof. Dr. Jörg Weißmüller and Hai-Jun Jin, opens doors to diverse applications such as self-healing materials and intelligent structures.

SourceHelmholtz Association·JournalScience·DateJun 6, 2011

Upgrading the vanadium redox battery

Researchers have improved the performance of vanadium redox batteries by modifying their electrolyte solution, increasing energy storage capacity by 70 percent. The upgraded battery can now operate in a wider temperature range and reduce cooling costs, making it more suitable for grid reliability and renewable power sources.

SourceDOE/Pacific Northwest National Laboratory·JournalAdvanced Energy Materials·DateMar 17, 2011

Megalomaniac CEOs: Good or bad for company performance?

A study published in the Journal of Management Studies found that dominant CEOs can drive companies to extremes of performance. However, a strong board of directors can mitigate this effect and improve company performance. Companies with powerful boards tend to have better outcomes than those without them.

SourceWiley·JournalJournal of Management Studies·DateJan 26, 2011

Nanotube thermopower

Researchers at MIT have successfully stored energy in carbon nanotubes using a thermopower process, which converts chemical energy into electricity. This breakthrough could lead to the development of more efficient power generation and storage systems.

Why it's hard to crash the electric grid

A study published in Chaos found that traditional topological models, which rely on abstract network connections, are less accurate than physics-based models when assessing the vulnerability of the US electric grid. The researchers conclude that the grid's unpredictability makes it difficult to identify potential attack points.

Planar power

Researchers at PNNL have redesigned sodium-nickel chloride batteries to deliver 30% more power at lower temperatures, making them safer and cheaper to manufacture than lithium-ion batteries. The planar design enables compact stacking, improving the battery's performance for large-scale energy storage.

SourceDOE/Pacific Northwest National Laboratory·JournalECS Transactions·DateOct 11, 2010

Is hand washing enough to stop the spread of disease?

A study found that hand washing without thorough drying increases the risk of bacterial transfer, while using paper towels or a rapid air jet hand dryer reduces the risk. Rubbing hands together during drying can counteract hand washing effects.

SourceWiley·JournalJournal of Applied Microbiology·DateSep 7, 2010

Energy storage system deals with sudden draws on the grid

Researchers at the University of Leeds have developed an integrated system that stores excess energy and uses it to supply electricity during peak demand. This innovative system cuts greenhouse gas emissions by reducing nitrogen oxide emissions and capturing carbon dioxide in solid form for storage.

SourceUniversity of Leeds·JournalInternational Journal of Energy Research·DateAug 11, 2010

A smart way to charge up

Researchers at Fraunhofer Institute have developed a smart charging station that enables electric vehicles to recharge during periods of low energy demand and high renewable energy production. This system aims to reduce peak loads and maximize the contribution of solar and wind power.

Chocoholic mice fear no pain

A study found that stressed mice seek chocolate despite painful consequences, mirroring human compulsive eating behavior. Researchers trained mice with a history of hunger to overcome their fear of certain foods.

SourceBMC (BioMed Central)·JournalBMC Neuroscience·DateFeb 8, 2010

Making more efficient fuel cells

Researchers have discovered a strain of bacteria with pilin proteins that can conduct electricity, leading to increased power output in microbial fuel cells. This breakthrough could enable the use of microbial fuel cells in remote environments and monitoring devices, such as ocean floor sensors, to convert waste into electricity.

Opening a new window on daylight

A new formula for assessing tropical sky climate conditions allows for optimized daylighting and shading. The study suggests that for over 95% of occupancy periods, daylight alone can suffice for lighting with the right window configuration.

SourceInderscience Publishers·JournalInternational Journal of Engineering Systems Modelling and Simulation·DateJul 31, 2009

A bright future with solar lanterns for India's poor

The study found that solar lanterns significantly reduced kerosene and electricity costs, with annual savings ranging from $150 to $250. Solar lanterns also improved household work efficiency for women and increased school hours for children, benefiting rural Indian communities.

SourceSpringer·JournalHuman Ecology·DateApr 27, 2009

Electricity from straw

Researchers at Fraunhofer-Gesellschaft develop biogas plant that generates 30% more electricity from non-edible corn stalks. The new plant reduces storage time by 50-70% and boosts electrical efficiency to 40-55% with fuel cells.

'Smart' fridges stay cool by talking to each other

Researchers at CSIRO Australia have developed smart fridges that can negotiate the most energy-efficient way to keep food cold, reducing electricity consumption and greenhouse gas emissions. The fridges work as a network, sharing energy provided by renewable sources like solar panels or wind turbines.

Tilting at wind farms

Researchers develop a novel control method to mitigate wind speed variations by leveraging rotor inertia as energy storage. This approach reduces the need for external energy storage facilities, improving overall wind farm efficiency.

SourceInderscience Publishers·JournalInternational Journal of Power Electronics·DateJan 7, 2009