Results 61 to 70 of about 167,450,031 (235)

Security and Performance Testbed for Simulation of Proof-of-Stake Protocols

open access: yes, 2020
Tato diplomová práce se zabývá technologii blockchain se zaměřením na konsenzus protokoly, zvláště protokoly typu proof-of-stake. V této práci naleznete popis těchto protokolů následovaný popisem konsenzu v technologii blockchain.
Kotráš, Jan
core   +1 more source

Consensus at a Turning Point: Analyzing Ethereum’s 2022 Migration From PoW to PoS

open access: yesIEEE Access
The development of blockchain consensus mechanisms has put sustainability, scalability, and efficiency first in the list of cryptocurrency studies. As Bitcoin still uses the energy-intensive Proof-of-Work (PoW) algorithm, Ethereum is in the process of ...
Shahbaz Siddiqui   +4 more
doaj   +1 more source

Agent-based modeling of Ethereum consensus short-range reorganization attacks [PDF]

open access: yesBlockchain
Blockchain technology establishes trust among participants through technical means. However, some malicious nodes may compromise this trust through short-range reorganization attacks for their interest.
Junhuan Zhang, Zhengyong Zhao, Ran Ji
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies   +2 more
wiley   +1 more source

A Hybrid PoS–PoW Blockchain Framework for Secure Cyber Threat Intelligence Sharing: Design, Implementation, and Evaluation

open access: yesBig Data and Cognitive Computing
Many blockchain-based cyber threat intelligence (CTI) sharing systems emphasize immutability and auditability, but often treat CTI submissions as ordinary blockchain transactions without explicitly separating content validation from publication anchoring.
Ahmed El-Kosairy, Heba Kamal Aslan
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Blockchain ecosystems: proof of work and proof of stake analysis [PDF]

open access: yes
LAUREA MAGISTRALENegli anni passati, le transazioni erano comunemente facilitate dalle banche, presentando il rischio di insolvenza di questi intermediari.
BERNARDELLI, SIMONE
core  

A Proof of Stake Sharding Protocol for Scalable Blockchains [PDF]

open access: yes, 2017
Cryptocurrencies such as Bitcoin has drawn great attention recently. The public ledger blockchain serves as a secure database for cryptocurrencies. However, only 3 to 7 transactions can be processed per second, which means the blockchain does not scale ...
Gao, Yuefei; University of Tsukuba   +1 more
core  

A New Consensus Protocol for Blockchain Interoperability Architecture

open access: yesIEEE Access, 2020
Blockchain is widely recognized as a potential disruptive technology that has gained much popularity recently. Despite many promising results, the current blockchain landscape is fragmented, in which many blockchain systems exist in silos ...
Yan Pang
doaj   +1 more source

Analog Classification of Human Hand Gestures Exploiting Dendritic Integration With an Organic Artificial Soma

open access: yesAdvanced Functional Materials, EarlyView.
An organic neuromorphic architecture for the classification of human motor behavior is presented and validated. It performs somatic integration by linearly combining the activity from three muscles. An investigation of synaptic weights is presented and discussed in relationship with the classification performance.
Ilenia Sergi   +7 more
wiley   +1 more source

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