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702 notícias encontradas para "elec"
Physicists finally build a quantum material predicted more than a decade ago
Physicists finally build a quantum material predicted more than a decade ago
Researchers have achieved a major milestone by creating a long-sought two-dimensional quantum material and confirming its unusual conducting edge states. The ability to control these states through strain could make the material a promising platform for future room-temperature qu
Tiny bubbles could revolutionize inkjet printing
Tiny bubbles could revolutionize inkjet printing
Ultra-fine bubbles may offer a cleaner way to perfect inkjet printing for next-generation electronics. By simply changing the number of bubbles in each droplet, researchers were able to dramatically reshape the final printed pattern without leaving behind unwanted chemical residu
Foto: Vasily Kleymenov / Pexels
‘Every time the rain falls, the fear comes back’: life in Lagos under the constant threat
As Nigeria braces for another season of devastating rains, people affected describe the mental toll of repeatedly rebuilding their livesMurky water first tore down a perimeter fence, then bubbled into the yard before spilling into every room. Within minutes, electronics, kitchen
This electric field trick boosted heat flow by nearly 300%
This electric field trick boosted heat flow by nearly 300%
Researchers discovered that electricity can dramatically reshape how heat flows through certain ceramic materials, increasing heat conduction by almost threefold in a preferred direction. The unexpected result could lead to much more efficient cooling technologies and energy-savi
Secure glass containers for storing chemical waste through laser welding
Secure glass containers for storing chemical waste through laser welding
As the adoption of electric vehicles continues to grow, so does the need for the safe and permanent storage of battery materials and industrial chemical waste. Certain waste streams require disposal in what are known as Category IV landfills, which impose particularly stringent r
Drawing the line: Virtual fences trigger the same cattle behavior as physical ones
Drawing the line: Virtual fences trigger the same cattle behavior as physical ones
Virtual fences could make managing grazing livestock on farms more flexible and more efficient while improving animal welfare. A new study by the University of Göttingen shows that virtual fences trigger behavior in cattle similar to that caused by conventional electric fences, i
Machine learning calibration of biosensors for microcystin toxin monitoring in freshwater
Machine learning calibration of biosensors for microcystin toxin monitoring in freshwater
Portable screen-printed carbon electrode (SPCE) biosensors offer a rapid, low-cost way to detect microcystin-lysine-arginine (MC-LR), an extremely potent toxin produced by cyanobacteria during harmful algal blooms in freshwater. Even at low concentrations, MC-LR can damage the li
Banned chemicals continue to endanger environmental health in the Middle East and North Af
Banned chemicals continue to endanger environmental health in the Middle East and North Af
In a study recently published in the journal Environmental Research, scientists from the University of Sharjah have drawn renewed attention to contamination by polybrominated diphenyl ethers (PBDEs), a class of man-made chemicals formerly used as flame retardants in a wide range
Computer-guided electricity rapidly transforms flat nanofilms into 3D shapes on demand
Computer-guided electricity rapidly transforms flat nanofilms into 3D shapes on demand
Researchers at Nagoya University in Japan have developed a method to form dome-shaped bumps on nanofilms in water using a computer-guided electron beam. The bumps form within 10 seconds and can be flattened, reshaped or repositioned as needed.
Weather tracker: Unusually warm rivers affect French nuclear power plants
Weather tracker: Unusually warm rivers affect French nuclear power plants
High temperatures and below average rainfall put pressure on waterways used to cool reactorsAbove average temperatures combined with below average rainfall across much of western and central Europe during June and the first half of July have placed increasing pressure on rivers,
New 3D thermal cloak hides objects from heat in any direction
New 3D thermal cloak hides objects from heat in any direction
Researchers have designed and built the first 3D device that can make objects invisible to heat, an advance that could transform how we protect sensitive electronics, manage heat in microchips and shield equipment from thermal detection.
New imaging method reveals how electric fields reshape ferroelectric materials
New imaging method reveals how electric fields reshape ferroelectric materials
New research is shedding light on longstanding debates over the behavior of ferroelectric materials when those materials are exposed to electric fields. The findings stem from the use of a novel technique that allows researchers to observe the real-time behavior of domain walls i