Robotics
We tend to take our sense of touch for granted in everyday settings, but it is vital for our ability to interact with our surroundings. Imagine reaching into the fridge to grab an egg for breakfast. As your fingers touch ...
Jun 2, 2022
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222
Computer Sciences
The year is 2030 and we are at the world's largest tech conference, CES in Las Vegas. A crowd is gathered to watch a big tech company unveil its new smartphone. The CEO comes to the stage and announces the Nyooro, containing ...
May 25, 2022
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27
Electronics & Semiconductors
Transistors, which are devices that control or amplify electrical signals and power, are one of the most ubiquitous components of modern electronics. The most widely used transistor is known as the MOSFET, which stands for ...
May 13, 2022
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31
Robotics
In the quest to build smart skin that mimics the sensing capabilities of natural skin, ionic skins have shown significant advantages. They're made of flexible, biocompatible hydrogels that use ions to carry an electrical ...
Apr 28, 2022
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36
Energy & Green Tech
It doesn't come on fast. It may take weeks to notice. You have the newly recharged lithium-ion AA batteries in the wireless kitty water fountain, and they last two days. They once lasted a week or more. Another round of charging, ...
Apr 28, 2022
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192
Hi Tech & Innovation
A team of international scientists have performed difficult machine learning computations using a nano-scale device, named an "optomemristor."
Apr 27, 2022
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86
Engineering
As advances in wearable devices push the amount of information they can provide consumers, sensors increasingly have to conform to the contours of the body. One approach applies the principles of kirigami to give sensors ...
Mar 29, 2022
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83
Engineering
Having trouble hearing? Just turn up your shirt. That's the idea behind a new "acoustic fabric" developed by engineers at MIT and collaborators at Rhode Island School of Design.
Mar 16, 2022
2
147
Consumer & Gadgets
Tired of the color on your car? A new innovation from BMW will let you change it at the touch of a button.
Jan 6, 2022
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174
Robotics
A novel carbon-based biosensor developed at UTS is set to drive new innovations in brain-controlled robotics.
Dec 21, 2021
0
897
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
