Results 11 to 20 of about 84,656 (266)

Aloe arborescens: In Vitro Screening of Genotoxicity, Effective Inhibition of Enzyme Characteristics for Disease Etiology, and Microbiological Activity

open access: yesMolecules, 2022
The present study assessed the genotoxicity, the possibility of inhibiting selected enzymes, and the microbial activity of lyophilisate from 3-year-old A. arborescens leaves obtained from controlled crops. The lyophilisate from 3-year-old A.
Kamil Pawłowicz   +5 more
doaj   +1 more source

Model-based Testing of Scratch Programs

open access: yes2022 IEEE Conference on Software Testing, Verification and Validation (ICST), 2022
Learners are often introduced to programming via dedicated languages such as Scratch, where block-based commands are assembled visually in order to control the interactions of graphical sprites. Automated testing of such programs is an important prerequisite for supporting debugging, providing hints, or assessing learning outcomes.
Katharina Götz   +2 more
openaire   +2 more sources

Scratch behavior of model epoxy resins with different crosslinking densities

open access: yesMaterials & Design, 2019
The scratch behavior of model epoxy resins with varying degrees of crosslink density was investigated according to the ASTM D7027/ISO 19252 scratch test methodology.
Glendimar Molero, Hung-Jue Sue
doaj   +1 more source

INFLUENCE OF HEAT TREATMENT ON FRICTION AND WEAR OF UNALLOYED DUCTILE IRON [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2012
Ductile iron is cast iron in which the graphite is present as spheres (nodules). This produces material which has high strength, ductility, thermal shock resistance, and wear resistance with good castability, damping capacity, machinability, and self ...
I. A. Mohamed   +3 more
doaj   +1 more source

TRIBOLOGICAL BEHAVOUR OF HEAT TREATED COLD WORK STEELS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2013
The present experimental work investigates the friction and wear behavior of commercial cold work tool steels. The aim of the work is to get optimal combination of hardness, friction coefficient and wear by various heat treatment processes and tempering ...
W. Y. Ali   +3 more
doaj   +1 more source

Evaluating the Wear of Polycrystalline Diamond Compact Drill Bit Cutters using Indentation and Scratch Tests

open access: yesARO-The Scientific Journal of Koya University, 2018
–Polycrystalline diamond compact (PDC) drill bits are widely used in oil and gas drilling. The wear of PDC cutters is a major problem during drilling. It leads to severe time losses which affect the overall drilling operation cost.
Rafid K. Abbas, Ali R. Hassanpour
doaj   +1 more source

Tribological Study of Simply and Duplex-Coated CrN-X42Cr13 Tribosystems under Dry Sliding Wear and Progressive Loading Scratching

open access: yesCeramics, 2022
CrN coatings are widely used in the industry due to their excellent mechanical features and outstanding wear and corrosion resistance. Using scratch and ball-on-disk wear tests, the current study deals with the tribological characterisation of CrN ...
Maria Berkes Maros   +1 more
doaj   +1 more source

Microstructure And Mechanical Properties Of Crofer 22 APU Ferritic Stainless Steel

open access: yesArchives of Metallurgy and Materials, 2015
The objective of this work was to expand the knowledge on mechanical properties of the oxidized Crofer 22 APU Ferritic Stainless Steel. To examine adhesion of oxide scale formed on steel the scratch test was performed.
Stygar M., Durda E.
doaj   +1 more source

Damage Mechanisms in AISI 304 Borided Steel: Scratch and Daimler-Benz Adhesion Tests [PDF]

open access: yesMaterials Research, 2015
In this study, damage mechanisms in the FeB/Fe2B coatings formed on the surface of AISI 304 steel are determined by adhesion tests. First, the boriding of the AISI 304 steel was carried out through the powder-pack method at 1223 K in the range from 2-10 ...
German Anibal Rodríguez-Castro   +6 more
doaj   +1 more source

Dermatographism with vulvar symptoms

open access: yesInternational Journal of Women's Dermatology, 2021
Dermatographism (DG) is characterized by a localized, inducible, wheal-and-flare response along the distribution of mechanical pressure. We report an illustrative case of DG with vulvar symptoms (DG-VS) and review the literature on this rarely recognized
Sydney Rivera, MPH   +1 more
doaj   +1 more source

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