front cover of Clean Energy for Low-Income Communities
Clean Energy for Low-Income Communities
Technology, deployment and challenges
David S-K. Ting
The Institution of Engineering and Technology, 2024
Energy provision for low income or remote communities is a difficult challenge, with many still depending on polluting and costly fossil fuels. Transporting energy is a further problem since some communities are only accessible during brief periods of the year. Local energy generation is a key solution, but technical challenges need to be overcome.
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front cover of Light Filaments
Light Filaments
Structures, challenges and applications
Jean-Claude Diels
The Institution of Engineering and Technology, 2022
A laser of sufficient intensity traveling through air will - by itself - engineer a narrow channel over which light will propagate for tens or even hundreds of meters. Such filaments of laser light were first created at the end of the twentieth century, and investigators are now beginning to explore new applications for them.
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Michigan's economic future
challenges and opportunities
Charles L. Ballard
Michigan State University Press, 2006

front cover of Proof-of-Stake for Blockchain Networks
Proof-of-Stake for Blockchain Networks
Fundamentals, challenges and approaches
Cong T. Nguyen
The Institution of Engineering and Technology, 2024
A consensus mechanism is the core component of a blockchain network, which ensures that every participant agrees on the state of the network in trustless environments. Until now, current blockchain networks have been using the proof-of-work (PoW) consensus mechanism, which has serious limitations such as huge energy consumption, low transaction processing capabilities, and centralization and scalability issues. To overcome these problems, a new consensus mechanism entitled proof-of-stake (PoS) has been developed. PoS has many advantages, including negligible energy consumption and very low consensus delay. Ethereum (the largest decentralized global software platform to create secured digital technology powered by blockchain technology and the blockchain of choice globally for all developers and enterprises) has just switched from PoW to PoS. As a result, this mechanism is expected to become a cutting-edge technology for future blockchain networks.
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