Results 51 to 60 of about 9,045 (259)

Bronze Age cereal processing in Southern Iberia: A material approach to the production and use of grinding equipment

open access: yesJournal of Lithic Studies, 2016
During the last two decades important progress has been made regarding functional analysis on prehistoric grinding equipment, thanks to the application of new methods and techniques.
Selina Delgado-Raack, Roberto Risch
doaj   +1 more source

Khor Shambat, Early Khartoum, Neolithic, cemetery, graves, settlement, pottery, lithic inventory, archaeozoology [PDF]

open access: yesPolish Archaeology in the Mediterranean, 2017
The locality of Khor Shambat in the Omdurman district of Khartoum was investigated in 2012. The site lies between two gorges draining water to the Nile Valley from the west.
Przemysław Bobrowski   +3 more
doaj   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

Born again

open access: yesDocumenta Praehistorica
Ground and abrasive stone tools had a long, dynamic and complex life during which they could repeatedly pass through different segments of the operational chain until their final disposal.
Dragana Antonović, Vidan Dimić
doaj   +1 more source

Macrolithic tools for mining and primary processing of metal ores from the site of Grotta della Monaca (Calabria, Italy)

open access: yesJournal of Lithic Studies, 2016
Grotta della Monaca is a karst cave located in Calabria, the southernmost region of the Italian peninsula. About half a kilometre deep, the cavern has drawn the attention of people since the Palaeolithic period due to the abundance of metal ores within ...
Francesco Breglia   +2 more
doaj   +1 more source

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

open access: yesAdvanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya   +11 more
wiley   +1 more source

Cornus Mas L. Seed‐Derived Biosorbent for Methylene Blue Removal: Surface Characterization and Biosorption Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Cornus mas L. seeds are transformed into a high‐performance biosorbent through chemical modification, effectively removing methylene blue from aqueous solutions. Comprehensive characterization and optimization reveal a maximum biosorption capacity of 71.71 mg g−1, establishing this sustainable, cost‐effective material as a promising solution for ...
Hakan Yıldız   +2 more
wiley   +1 more source

Stone pedestalled vessels from Tel Tsaf, a Middle Chalcolithic site in the Central Jordan Valley, Israel

open access: yesJournal of Lithic Studies, 2016
The pedestalled bowls described here are part of the ground stone tool assemblage discovered during the Hebrew University of Jerusalem excavations at Tel Tsaf (2004-2007).
Marina Bekker, Yosef Garfinkel
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Querns and mills during Roman times at the northern frontier of the Roman Empire (Belgium, Northern France, Southern Netherlands, Western Germany): Unraveling geological and geographical provenances, a multidisciplinary research project

open access: yesJournal of Lithic Studies, 2016
This paper presents the results of a multi-disciplinary provenance study of querns and millstones during the Roman period (1st-4th century CE) in the northern part of the Roman Empire (provinces of Gallia Belgica and Germania Inferior).
Sibrecht Reniere   +7 more
doaj   +1 more source

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