Results 111 to 120 of about 39,636 (313)

A practical study for Treatment and Conservation a group of Silver Coins from Dhamar Regional Museum, Dhamar, Yemen.

open access: yesArcheomatica, 2014
A big group of silver coins{35 coins} was discovered in Banawa excavation , Dhamar , season 2002, and now it is situated in Dhamar Regional Museum ,Yemen.
Mohamed M. Megahed
doaj  

Roman Silver Coins

open access: yes, 2017
In a world without paper currency, bank checks, or debit/credit cards, coinage was the only standard medium of exchange. For hundreds of years, Roman soldiers of the Empire were paid regularly in bronze or silver coins, like these, and were given a bonus

core  

Toward a Unified Mechanistic Understanding of Polymer Electrolytes for Advanced Solid‐State Batteries

open access: yesAdvanced Materials, EarlyView.
Polymer electrolytes (PEs) are often indiscriminately grouped as “solid polymer electrolytes (SPEs)”, despite fundamental differences in their ion‐transport mechanisms. This Perspective establishes a mechanism‐based framework that distinguishes gel, quasi‐solid, and all‐solid polymer electrolytes based on their dominant ion‐transport pathways.
Jing Chen   +15 more
wiley   +1 more source

Silver fractions of the “Kugelreiter” tetradrachms

open access: yesArheološki Vestnik, 2013
The author has collected all the available documentation about the small Norican silver coins of the so-called Kugelreiter type. Two groups can be distinguished by the images on the reverse of the coins: on the reverse of the coins of the first group a ...
Peter Kos
doaj  

A Possible Hoard of Judaean and Nabataean Coins from Cyprus

open access: yes, 2015
This article presents a group of 57 Judaean and Nabataean bronze coins said to have been found on the Karpas Peninsula in Cyprus, donated to the ANS in 1978.
Harvey, Craig A.
core   +1 more source

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang   +4 more
wiley   +1 more source

COMMEMORATIVE AND BULLION COINS DEDICATED TO THE NORTH: HISTORICAL AND ECONOMIC ASPECTS (AN OVERVIEW)

open access: yesСевер и рынок: формирование экономического порядка
This article offers an overview of commemorative and bullion coins dedicated to the North, grouping thematic coins from the past 30 years. It analyzes various aspects, including historical, economic, and investment perspectives.
Svetlana S. Galazova   +4 more
doaj   +1 more source

Metal analyses of Viking-Age coins

open access: yes, 1918
The silver content of 155 Viking-Age coins has been analysed using XRF. The coins had been srruck in a large number of countries, mainly during the period c. 800-1150.
Jonsson, Eeva,
core  

Conductive Additives for Next‐Generation Batteries: Emphasizing the Potential of Bio‐Derived 3D Carbon Architectures at Electrode–Electrolyte Interfaces

open access: yesAdvanced Materials Interfaces, EarlyView.
3D conductive frameworks can maintain continuous electron transport, mechanical stability, and interfacial integrity, helping next‐generation batteries operate more efficiently. This Review examines their relevance to Si anodes, all‐solid‐state batteries, and dry‐processed electrodes, and highlights bio‐derived carbons as sustainable, structurally ...
SeoYoung Ha   +5 more
wiley   +1 more source

THE LEGIONARY COINS OF SEPTIMIUS SEVERUS

open access: yesJournal of Ancient History and Archaeology
As Severus faced his opponents in the Year of the Five Emperors, his mint produced a series of legionary coins that named each of the legions fighting for him. This article shows how those coins not only celebrated Severus’ soldiers but framed Severus in
Nathaniel S. KATZ
doaj   +1 more source

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