Proof-of-concept nanogenerator turns CO₂ into sustainable power
University of Queensland researchers have built a generator that absorbs carbon dioxide (CO2) to make electricity.
Apr 18, 2024
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University of Queensland researchers have built a generator that absorbs carbon dioxide (CO2) to make electricity.
Apr 18, 2024
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Imagine playing a racing game like Mario Kart, using only your brain to execute the complex series of turns in a lap.
Mar 29, 2024
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People with voice disorders, including those with pathological vocal cord conditions or who are recovering from laryngeal cancer surgeries, can often find it difficult or impossible to speak. That may soon change.
Mar 16, 2024
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In the future, modern machines should not only follow algorithms quickly and precisely, but also function intelligently—in other words, in a way that resembles the human brain. Scientists from Dortmund, Loughborough, Kiev ...
Feb 7, 2024
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LiDAR sensors are indispensable for the realization of advanced technologies such as advanced driver assistance systems (ADAS), autonomous driving, and AR/VR. In particular, short- and mid-range LiDAR used in AR/VR devices ...
Jan 31, 2024
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With more than 1,000 nerve endings, human skin is the brain's largest sensory connection to the outside world, providing a wealth of feedback through touch, temperature and pressure. While these complex features make skin ...
Jan 26, 2024
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Hydrogen gas is the smallest and lightest of all known molecules, which makes it easy to leak. It's colorless and odorless. Also, when concentrated above 4% in a confined space, it poses a risk of ignition or explosion.
Jan 25, 2024
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A research team led by Professor Kyung-In Jang at the Department of Robotics and Mechanical and Electronic Engineering, DGIST, and another led by Professor Jihwan Choi at the Department of Aerospace Engineering, KAIST, developed ...
Dec 27, 2023
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In a world-first, researchers from the GrapheneX-UTS Human-centric Artificial Intelligence Centre at the University of Technology Sydney (UTS) have developed a portable, non-invasive system that can decode silent thoughts ...
Dec 11, 2023
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Artificial hands can be operated via app or with sensors placed in the muscles of the forearm. New research from the Technical University of Munich (TUM) shows that a better understanding of muscle activity patterns in the ...
Dec 5, 2023
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In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time-varying or spatial-varying quantity.
In the physical world, any quantity measurable through time or over space can be taken as a signal. Within a complex society, any set of human information or machine data can also be taken as a signal. Such information or machine data (for example, the dots on a screen, the ink making up text on a paper page, or the words now flowing into the reader's mind) must all be part of systems existing in the physical world – either living or non-living.
Despite the complexity of such systems, their outputs and inputs can often be represented as simple quantities measurable through time or across space. In the latter half of the 20th century, electrical engineering itself separated into several disciplines, specializing in the design and analysis of physical signals and systems, on the one hand, and in the functional behavior and conceptual structure of the complex human and machine systems, on the other. These engineering disciplines have led the way in the design, study, and implementation of systems that take advantage of signals as simple measurable quantities in order to facilitate the transmission, storage, and manipulation of information.
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