Results 21 to 30 of about 53,316 (217)

Chemical, Electrochemical and Corrosive Wear Behavior of Nickel-plated Steel and Brass-plated Steel Based Coins from Egypt in Artificial Sweat

open access: yesInternational Journal of Electrochemical Science, 2021
The corrosion behavior of two types of Egyptian coins were investigated. Coins are available as 25 piaster (25P); (nickel-plated steel) and 50 piaster (50P); (brass-plated steel) Egyptian coins. These coins were studied in Artificial Sweat Solution (ASS)
Ahmed M. Elzohry   +4 more
doaj   +1 more source

XRF analyses of electrum coins of 7th — 4th cc. BCE: coin hoard (hoards?) or several groups of coins [PDF]

open access: yesМатериалы по археологии и истории античного и средневекового Причерноморья, 2022
The subject of the publication is a group of electrum coins of Mysia — Kyzikus, Ionia — Lesbos, Mytilene, Phokaia, and Erythrae. The coins are 83 in number and were found together in a shipment of smuggled traffic. The numismatic term coin hoard, in this
Zlateva, B.   +2 more
doaj   +1 more source

Collisions of Coins [PDF]

open access: yesThe Physics Teacher, 2021
This paper addresses a popular topic in science teaching and competitions for primary and secondary school students. Experiments with colliding coins are relatively easy to perform and therefore popular in science lessons. We used the idea in the science competition we organized for pupils aged 6 to 13 years.
Rovšek, Barbara, Žigon, Sašo
openaire   +2 more sources

Uncommon cases of foreign bodies in the esophagus--duplex coins [PDF]

open access: yes, 1970
Two cases of multiple foreign bodies, i. e., duplex coins in the esophagus are reported. These foreign bodies were removed by peroral esophagoscopy successfully.
Tasaka, Seido, Oguri, Yoshio
core   +1 more source

Bahram Core image and the seven princess under the spot light of nezamy five manuscript that is kept in gallery poalters - Baltimore.

open access: yesJournal of Architecture, Art & Humanistic Science, 2018
Bahram Gur considered from the Sassanines kings whose they ruled their people fairly , As well as his courage. So he was lovable  from his people, So they cherished him and they want the commeration  of his memory, and authored for him stories, which ...
Raafat Al Nabrawy   +2 more
doaj   +1 more source

Monument of the Serbian freedom and progress [PDF]

open access: yesBankarstvo, 2014
The copper coins of Mihailo M. Obrenovic, Prince of Serbia, were the first Serbian coins minted after the medieval coins, which were put into circulation in 1898, one year after Mihailo's unfortunate demise.
Pantelić Svetlana
doaj   +1 more source

Classification of Hungarian medieval silver coins using x-ray fluorescent spectroscopy and multivariate data analysis [PDF]

open access: yes, 2013
A set of silver coins from the collection of Déri Museum Debrecen (Hungary) was examined by X-ray fluorescent elemental analysis with the aim to assign the coins to different groups with the best possible precision based on the acquired chemical ...
Anita Rácz   +7 more
core   +1 more source

Images of Bahram Core and the Seven Princesses in the light of a five manuscript preserved by the Walters Gallery - Peltmore

open access: yesJournal of Architecture, Art & Humanistic Science, 2018
Bahram Gur considered from the Sassanines kings whose they ruled their people fairly , As well as his courage. So he was lovable  from his people, So they cherished him and they want the commeration  of his memory, and authored for him stories, which ...
Raafat El Nabrawy   +2 more
doaj   +1 more source

Composite Fuzzy Logic Control Approach to a Flexible Joint Manipulator

open access: yesInternational Journal of Advanced Robotic Systems, 2013
The raised complicatedness of the dynamics of a robot manipulator considering joint elasticity makes conventional model-based control strategies complex and hard to synthesize. This paper presents investigations into the development of hybrid intelligent
Mohd Ashraf Ahmad   +2 more
doaj   +1 more source

SmartPATH: An Efficient Hybrid ACO-GA Algorithm for Solving the Global Path Planning Problem of Mobile Robots

open access: yesInternational Journal of Advanced Robotic Systems, 2014
Path planning is a fundamental optimization problem that is crucial for the navigation of a mobile robot. Among the vast array of optimization approaches, we focus in this paper on Ant Colony Optimization (ACO) and Genetic Algorithms (GA) for solving the
Imen Châari   +5 more
doaj   +1 more source

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