Results 51 to 60 of about 6,143 (196)

A Blockchain-based Approach for Data Accountability and Provenance Tracking

, 2017
The recent approval of the General Data Protection Regulation (GDPR) imposes new data protection requirements on data controllers and processors with respect to the processing of European Union (EU) residents' data. These requirements consist of a single
Azaria A., Nakamoto S., Neisse R., Wood G.   +3 more
core   +1 more source

A new, ~4500‐year varve record and high‐resolution tephrochronology from lake Hämälänlampi, eastern Finland, provides age constraints for the Furnas C and the Glen Garry/Askja A‐2000 eruptions

Journal of Quaternary Science, EarlyView.
ABSTRACT The northern European distal cryptotephra framework is constantly developing both in terms of identification of new tephra horizons and improved age constraints for the already well‐established tephra marker horizons. However, many prehistoric tephra layers have only been dated by the radiocarbon method, with its inherent problems.
Maarit Kalliokoski, Veera Erola, Saija Saarni   +2 more
wiley   +1 more source

Dynamic Sharding and Monte Carlo for Post-Quantum Blockchain Resilience

Cryptography
Scalability and security restrictions are posing new challenges for blockchain networks, especially in the face of Distributed Denial-of-Service (DDoS) attacks and upcoming quantum threats.
Dahhak Hajar, Nadia Afifi, Imane Hilal
doaj   +1 more source

Blockchain Sharding Scalable Model of Adaptive Node Scale [PDF]

Jisuanji gongcheng
Sharding is one of the core technologies to address the scalability of blockchains. However, the existing sharding schemes generally adopt a static sharding method with a predetermined shards' scale, which does not match the open and low-threshold ...
Baoying LI, Zhihuai LI, Chengai WANG, Feng YANG
doaj   +1 more source

A Robust Fault-Tolerant and Scalable Cluster-wide Deduplication for Shared-Nothing Storage Systems

, 2018
Deduplication has been largely employed in distributed storage systems to improve space efficiency. Traditional deduplication research ignores the design specifications of shared-nothing distributed storage systems such as no central metadata bottleneck,
Hamandawana, Prince, Khan, Awais, Kim, Youngjae, Lee, Chang-Gyu, Park, Sungyong   +4 more
core   +1 more source

Characterization of functional metabolites in broccoli by‐product using green extraction with supercritical fluids

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The present study aimed to valorize broccoli by‐products (leaves and stems) through the extraction of bioactive compounds using supercritical fluid extraction (SFE). The influence of broccoli variety, plant part and maturation stage on total phenolic content (TPC), antioxidant activity and antimicrobial properties was evaluated ...
Iris Gudiño, Rocío Casquete, María José Benito, María de Guía Córdoba, María Henar Prieto, Alberto Martín   +5 more
wiley   +1 more source

Distributed Processing of Generalized Graph-Pattern Queries in SPARQL 1.1 [PDF]

, 2016
We propose an efficient and scalable architecture for processing generalized graph-pattern queries as they are specified by the current W3C recommendation of the SPARQL 1.1 "Query Language" component.
Gurajada, Sairam, Theobald, Martin
core   +1 more source

Blackchain: Scalability for Resource-Constrained Accountable Vehicle-to-X Communication

, 2017
In this paper, we propose a new Blockchain-based message and revocation accountability system called Blackchain. Combining a distributed ledger with existing mechanisms for security in V2X communication systems, we design a distributed event data ...
Engelmann, Felix, Kargl, Frank, Mödinger, David, Schönig, Franziska, van der Heijden, Rens Wouter   +4 more
core   +1 more source

Efficient Cross-Shard Transaction Execution in Sharded Blockchains

CoRR, 2020
Sharding is a promising blockchain scaling solution. But it currently suffers from high latency and low throughput when it comes to cross-shard transactions, i.e., transactions that require coordination from multiple shards. The root cause of these limitations arise from the use of the classic two-phase commit protocol, which involves locking assets ...
Sourav Das 0001, Vinith Krishnan, Ling Ren 0001   +2 more
openaire   +2 more sources

Mechanism of Damage and Micro‐Characterisation of Irradiation‐Induced Free Radicals on the Epoxy Insulation of the Bridge Arm Reactors at High Altitude

High Voltage, EarlyView.
ABSTRACT Damage degradation of epoxy resin insulating materials by free radicals triggered by the ultraviolet irradiation environment at high altitude has become a key issue that restricts the reliability of the bridge arm reactor at high altitude.
Liang Zou, Xinya Luo, Zhiyun Han, Zhen Li, Xiaofeng Ding, Kejie Huang   +5 more
wiley   +1 more source