Researchers have identified a new form of magnetism in so-called magnetic graphene, which could point the way toward understanding superconductivity in this unusual type of material.
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IMAGE: A standard radio control-based drone, upgraded with necessary hardware and software and equipped with a simple 2D camera for the detection of a symbolized landing pad view more
Credit: Malik Demirhan and Chinthaka Premachandra in Development of an Automated Camera-Based Drone Landing System, published in IEEE Access by IEEE Xplore, under Creative Commons license CC BY-NC-ND 4.0.
Initially earmarked for covert military operations, unmanned aerial vehicles (UAVs) or drones have since gained tremendous popularity, which has broadened the scope of their use. In fact, remote pilot drones have been largely replaced by autonomous drones for applications in various fields. One such application is their usage in rescue missions following a natural or man-made disaster. However, this often requires the drones to be able to land safely on uneven terrain which can be very difficult to execute.
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IMAGE: Fig.2 Electron dynamics around a misoriented molecular defect. (a) STM image and snapshots obtained over an area including the defect indicated by the white arrow. Snapshots clearly show that electrons. view more
Credit: University of Tsukuba
Tsukuba, Japan - A team of researchers from the Faculty of Pure and Applied Sciences at the University of Tsukuba filmed the ultrafast motion of electrons with sub-nanoscale spatial resolution. This work provides a powerful tool for studying the operation of semiconductor devices, which can lead to more efficient electronic devices.
The ability to construct ever smaller and faster smartphones and computer chips depends on the ability of semiconductor manufacturers to understand how the electrons that carry information are affected by defects. However, these motions occur on the scale of trillionths of a second, and they can only be seen with a microscope that can image individual atoms. It may seem like an imposs
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The liquid electrolytes in flow batteries provide a bridge to help carry electrons into electrodes, and that changes how chemical engineers think about efficiency.
The way to boost electron transfer in grid-scale batteries is different than researchers had believed, a new study from the University of Michigan has shown.
The findings are a step toward being able to store renewable energy more efficiently.
As governments and utilities around the world roll out intermittent renewable energy sources such as wind and solar, we remain reliant on coal, natural gas and nuclear power plants to provide energy when the wind isn t blowing and the sun isn t shining. Grid-scale flow batteries are one proposed solution, storing energy for later use. But because they aren t very efficient, they need to be large and expensive.
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IMAGE: The inherent delay between the emission of the two types of electron leads to a characteristic ellipse in the analysed data. In principle, the position of individual data points around. view more
Credit: Daniel Haynes / Jörg Harms
An international consortium of scientists, initiated by Reinhard Kienberger, Professor of Laser and X-ray Physics at the Technical University of Munich (TUM), several years ago, has made significant measurements in the femtosecond range at the U.S. Stanford Linear Accelerator Center (SLAC).
However, on these miniscule timescales, it is extremely difficult to synchronize the X-ray pulse that sparks a reaction in the sample on the one hand and the laser pulse which observes it on the other. This problem is called timing jitter, and it is a major hurdle in ongoing efforts to perform time-resolved experiments at XFELs with ever-shorter resolution.