Results 21 to 30 of about 115,255 (264)

EFFECT OF TIP RADIUS OF THE INDENTERS ON FRICTION COEFFICIENT OF THE SCRATCHED METALLIC SHEETS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2013
The objective of the present work is to perform a scratch test to measure the abrasion wear resistance of metallic sheets. Besides, the deformation modes and the friction processes involved during the scratching will be investigated in order to get a ...
W. Y. Ali, M. Al-Grafi, M. Mahmoud
doaj   +1 more source

Synergic Effects of Nanosecond Laser Ablation and PVD-Coating on Cemented Carbides: Assessment on Surface and Mechanical Integrity

open access: yesMetals, 2023
Emerging laser precision machining, particularly using pulsed lasers, enlightens the innovation and functionalization of cemented carbides. These backbone materials of the tooling industry are usually considered difficult to machine or shape using ...
Shiqi Fang   +3 more
doaj   +1 more source

An Itch To Be Scratched [PDF]

open access: yesNeuron, 2010
The description of itch (formally known as pruritus) as an "unpleasant sensation that elicits the desire or reflex to scratch" (Ikoma et al., 2006) is immediately familiar. Research in the field of pruritoception has added to our understanding of this area of sensory neurobiology as it pertains to both normal and pathological conditions. In particular,
Patel, Kush N., Dong, Xinzhong
openaire   +2 more sources

SCRATCH TEST OF EPOXY COMPOSITES REINFORCED BY ALLIGNED CARBON NANOTUBES BY MAGNETIC FIELD [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2019
Based on the observation obtained from the tested composites with and without the application of magnetic field, it can be concluded that both the measured friction coefficient and wear observed for the composites prepared under magnetic field are lower ...
A. S. Ali, W. Y. Ali
doaj   +1 more source

A utilização do ambiente visual de programação para a contribuição do desenvolvimento do pensamento criativo

open access: yesIntersaberes, 2016
Ensinar programação para crianças e adolescentes é um novo desafio na educação básica. Neste âmbito, este artigo é um recorte de uma dissertação de mestrado com o objetivo de verificar se a utilização do Scratch pode contribuir para o desenvolvimento ...
Manuelle Lopes Quintas Bressan   +1 more
doaj   +1 more source

The Pleasurability of Scratching an Itch Amongst Different Pruritic Conditions

open access: yesActa Dermato-Venereologica, 2020
is missing (Short communication)
Rachel Shireen Golpanian   +6 more
doaj   +1 more source

FRICTION COEFFICIENT AND WEAR DISPLAYED BY THE SCRATCH OF POLYPROPYLENE REINFORCED BY COPPER WIRES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2016
The friction and wear of polypropylene matrix composites reinforced by unidirectional continuous copper wires are discussed in this work. It was found that friction coefficient displayed by the scratch of PP reinforced by copper wires showed slight ...
S. M Eman, M. I. Khashaba, W. Y. Ali
doaj   +1 more source

On the Distinctive Hardness, Anti-Corrosion Properties and Mechanisms of Flame-Deposited Carbon Coating with a Hierarchical Structure in Contrast to a Graphene Layer via Chemical Vapor Deposition

open access: yesNanomaterials, 2022
Two carbonaceous (amorphous carbon and graphene) coatings were catalytically grown on bulk Ni plates. It was found that the flame-deposited carbon (FDC) layers exhibited a unique hierarchical structure with the formation of FDC/Ni nano-interlocking ...
Wei Meng   +4 more
doaj   +1 more source

Programación de tecnologías para la inclusión social con Scratch: Prácticas sobre el pensamiento computacional en la formación docente

open access: yesRevista Electrónica Educare, 2019
EEn los últimos años se observa un interés por desarrollar prácticas, conceptos y perspectivas del pensamiento computacional y la programación en las escuelas, por lo cual resulta crucial la formación docente en estas temáticas.
Natalia Monjelat
doaj   +1 more source

Ensino de pensamento computacional para alunos do ensino básico usando Computação Desplugada e Scratch

open access: yesEm Extensão, 2022
A tecnologia está cada vez mais presente no cotidiano das pessoas, portanto, torna- se um importante recurso no processo de ensino e aprendizagem, com possibilidade de adoção não apenas em contextos específicos de cunho tecnológico, mas também em ...
Amanda Karollyne Monteiro Rodrigues   +2 more
doaj   +1 more source

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