Results 21 to 30 of about 17,512,953 (347)

Stone Scrapers of the Kurmanakovo IV Site of the Late Bronze Age in the Lower Kama Region: morphological and functional analysis

open access: yesАрхеология евразийских степей, 2023
Scrapers as a category of stone inventory of the Late Bronze Age cultures in Kazan Volga River and Kama River’s mouth regions is poorly covered in generalizing studies.
Ekaterina N. Golubeva, Anton V. Lyganov
doaj   +1 more source

Late Bronze Age spears in the ‘floor’ from Velem-Szent Vid, Hungary

open access: yesArcheologické Rozhledy, 2023
The study introduces a spearhead hoard from the Velem-Szent Vid hillfort (Vas County, Hungary), which was retrieved by the joint research project of the Eötvös Loránd University Institute of Archaeological Sciences and the Centre archéologique européen ...
János Gábor Tarbay
doaj   +1 more source

Degradation modes and tool wear mechanisms in finish and rough machining of Ti17 Titanium alloy under high-pressure water jet assistance [PDF]

open access: yes, 2013
This article presents the results of an experimental study on the Ti17 titanium alloy, which was carried out to analyze tool wear and the degradation mechanisms of an uncoated tungsten carbide tool insert. Two machining conditions, roughing and finishing,
GERMAIN, Guénaël   +3 more
core   +1 more source

Wear mechanisms of TiN coated tools during high-speed tapping of GGG50 nodular cast iron

open access: yes, 2023
Ductile irons are among the most used materials in the automotive industry. One of the critical problems during manufacturing of powertrain components is the fast wear of cutting tools because it can lead to defects in the part.
Veiga, Fernando   +3 more
core   +1 more source

Gun-lock and fire-lighter flints from excavations in Kazan: experimental use-wear research

open access: yesПоволжская археология, 2014
The results of experimental and use-wear research in assemblage of the flint artifacts from the 1995-2005 excavations in Kazan are represented in the article.
Galimova Madina Sh.   +2 more
doaj   +1 more source

Du mésolithique en creux

open access: yesRevue Archéologique de l’Est, 2022
The preventive archaeological excavation conducted in 2017 on the site of "Mont Saint-Pierre" in Champigny (Marne) led to the discovery of Mesolithic remains on the left bank of the Vesle River.
Nicolas Garmond   +4 more
doaj   +1 more source

Rethinking Use-Wear Analysis and Experimentation as Applied to the Study of Past Hominin Tool Use

open access: yesJournal of Paleolithic Archaeology, 2020
In prehistoric human populations, technologies played a fundamental role in the acquisition of different resources and are represented in the main daily living activities, such as with bone, wooden, and stone-tipped spears for hunting, and chipped-stone ...
João Marreiros   +5 more
semanticscholar   +1 more source

Running-in wear modeling of honed surface for combustion engine cylinder liners [PDF]

open access: yes, 2013
The texture change during running-in alters the performance and efficiency of a tribo-mechanical system. During mass production of cylinder liners, a final finishing stage known as ‘‘plateau honing’’ is commonly added to reduce the running-in wear ...
EL MANSORI, Mohamed   +3 more
core   +1 more source

A new approach to numerical characterisation of wear particle surfaces in three-dimensions for wear study [PDF]

open access: yes, 2012
In the wear and tear process of synovial joints, wear particles generated and released from articular cartilage within the joints have surface topography and mechanical property which can be used to reveal wear conditions. Three-dimensional (3D) particle
Jiang, X.   +7 more
core   +1 more source

Pirogues et travail du bois au Néolithique. Caractérisation des traces et des déchets produits expérimentalement en vue de la constitution d’un référentiel

open access: yesArchéopages, 2023
The experimental approach to woodworking in recent prehistory makes it possible to solve certain technical problems relating, for example, to the construction of dugouts, from felling the tree to finishing the craft, depending on the range of tools and ...
Bertrand Poissonnier   +3 more
doaj   +1 more source

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