Why you don't want 'phantom energy' on a spacecraft
You may not have heard of piezoelectric materials, but odds are, you have benefitted from them.
May 8, 2023
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You may not have heard of piezoelectric materials, but odds are, you have benefitted from them.
May 8, 2023
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Over the past year or so, generative AI models such as ChatGPT and DALL-E have made it possible to produce vast quantities of apparently human-like, high-quality creative content from a simple series of prompts.
Apr 29, 2023
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Scientists at UNSW Sydney have combined artificial synapses with advanced sensors to mimic the properties of human skin, in new research published in Advanced Functional Materials.
Apr 26, 2023
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A team of organic chemists and engineers from Linköping University and KTH Royal Institute of Technology, both in Sweden, has demonstrated that working transistors can be made from treated wood. The results have been published ...
Roboticists have been using a technique similar to the ancient art of paper folding to develop autonomous machines out of thin, flexible sheets. These lightweight robots are simpler and cheaper to make and more compact for ...
Apr 3, 2023
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Interacting with computers by brain activity seems less futuristic these days, thanks to researchers and entrepreneurs who have been attempting to tap the potential of brain-computer interfaces for augmented cognitive abilities.
Mar 29, 2023
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Countless hardware and software solutions created over the past decades draw inspiration from animals and natural phenomena. This includes electronic skins (e-skins), flexible and stretchable electronic circuits designed ...
New technologies like the rapidly advancing deep learning models have led to increasingly sophisticated artificial intelligence (AI) models. With promises ranging from autonomous vehicles—land, air, and seafaring—to highly ...
Mar 9, 2023
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It's happened to anyone with a cell phone—dropped calls or dead air because suddenly there is no service available. Or worse, the location pin drops on the navigation app.
Mar 3, 2023
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Sensing a hug from each other via the internet may be a possibility in the near future. A research team led by City University of Hong Kong (CityU) recently developed a wireless, soft e-skin that can both detect and deliver ...
Feb 23, 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.
This text uses material from Wikipedia, licensed under CC BY-SA