Results 61 to 70 of about 326,121 (229)

StorjLedger: An Innovative Distributed Storage Ecosystem That Overcomes Blockchain Trade‐Offs Using Erasure‐Coded Sharding and Proof‐of‐Storage Consensus

open access: yesEngineering Reports, Volume 7, Issue 10, October 2025.
StorjLedger leverages erasure‐coded sharding and Proof‐of‐Storage to deliver nearly 1000 transactions per second with sub‐second latency, 98% data redundancy, and 76% lower storage costs, resolving the blockchain trilemma by harmonizing scalability, security, and decentralization.
Saha Reno, Koushik Roy
wiley   +1 more source

Mountainous vegetation succession and land use during the last millennium in the Peloponnese (southern Greece): Environmental change and economic development in an isolated periphery

open access: yesJournal of Quaternary Science, Volume 40, Issue 7, Page 1269-1284, October 2025.
ABSTRACT Mediterranean mountainous areas and their valuable natural resources have long been attractive to human societies. The Peloponnese (southern Greece), with its complex topographic and climatic variability, has been the scenery for the development of numerous human communities.
Katerina Kouli   +11 more
wiley   +1 more source

New finds of Byzantine lead seals in the district of Edirne

open access: yesАнтичная древность и средние века, 2019
The present paper is based on the report on international colloquium on Rus’-byzantine sigillography (Kiev, 13–16 September 2013). It contains the new scientific information about eleven Byzantine lead seals from the area of the city of Adrianople ...
Mikhail Nikolayevich Butyrski
doaj  

Theophano Mouzalon: new finds – old open

open access: yesАнтичная древность и средние века, 2018
In connection with the discovery of a new, third seal of Theophano Mouzalon, archontessa of Rosia, versed in the work hypothesis of the publisher of V. Ulianovsky.
Victor Chkhaidze
doaj   +1 more source

A New Sigillographic Source from the Southern Coast of Crimea: Seal of Constantine, Patrikios and Genikos Logothetes from the Water Area near Cape Plaka

open access: yesВестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2023
Introduction. Thanks to sigillographic sources, the sigillographic map of Byzantine Taurika is constantly being refined and expanded due to the emergence of new places for detecting molybdoboulla.
Nikolay Alekseienko, Sergey Ivanov
doaj   +1 more source

Imperial systems and local landscapes of Buldan Yayla in Western Anatolia (Türkiye) during the last 4000 years: An integrated palynological, historical, and archaeological approach

open access: yesJournal of Quaternary Science, Volume 40, Issue 7, Page 1285-1304, October 2025.
ABSTRACT This study investigates long‐term impacts of empires on local socio‐ecosystems in western Anatolia (modern western Türkiye) over the past four millennia. We focus on Buldan Yayla Lake, located in a small mountain basin north of the Büyük Menderes (Great Meander) River valley.
Sabina Fiołna   +7 more
wiley   +1 more source

Rational Design of High‐Entropy Materials for Photo and Electrocatalytic Applications

open access: yesSmall Structures, Volume 6, Issue 10, October 2025.
This review highlights high‐entropy materials (HEMs) as a promising platform for advancing energy conversion and environmental catalysis, particularly in photocatalytic water splitting along with organic waste degradation and electrocatalytic OER and HER. The stability, scalability, and cost‐effectiveness are critically discussed, along with the merits
Binod Raj KC, Bishnu Prasad Bastakoti
wiley   +1 more source

Archaeometric Analyses of Medieval Pottery from the Lower Danube Region, Romania

open access: yesChemPlusChem, Volume 90, Issue 9, September 2025.
This study is about the pottery manufacturing in the Lower Danube region during the Early Medieval period (8th–10th c. AD). Optical microscopy, Particle induced X‐ray emission, and X‐ray diffraction analyses performed on 32 representative ceramic shards excavated at Pantelimonu de Sus, Constanţa County, Romania, provide clues on the raw materials and ...
Constantin Haită   +3 more
wiley   +1 more source

Umayyad Vocabulary on Administrative Objects from Palestine [PDF]

open access: yes, 2012
Both history sources as well as archaeological objects tell us about the past of a place. The writing of the Islamic history started already during the third quarter of the seventh century by Syrian writers who wrote about the Islamic conquests.
Amitai, Nitzan
core   +1 more source

Seals of Kommerkiarioi of the Ros’

open access: yesАнтичная древность и средние века
This article addresses the seals of the kommerkiarioi of the Ros’. So far there are known two groups of the seals in question. The first includes five specimens showing the flowering patriarchal cross on two steps on the obverse and the Greek inscription
Elena Vladimirovna Stepanova
doaj   +1 more source

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