Results 11 to 20 of about 80,161 (259)
Applied Sciences, 2022 This study aims to clarify the relationship between surface hardness and the peak interfacial frictional coefficient under different particle sizes. The relationship between particle size and the peak interfacial frictional coefficient with different ...
Xianqiang Zhao +2 more
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Study the surface hardness for (UPE/SiO2) composites [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2018 In this work the effect of adding SiO2 powder on the hardness property for UPE was studied. Three groups of samples were prepared (UPE/(SiO2-Micro)), (UPE/(Nano-SiO2) and (UPE/(Micro+Nano)SiO2) with weight fraction of additives (%2، %4، %6، %8).
Areej Hatam Fareed, Faik Hammad Anter
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Journal of Pharmacy and Bioallied Sciences, 2020 Background: Polymethyl methacrylate (PMMA) is a widely used resin in the field of prosthodontics for fabricating myriad orofacial prostheses. Albeit several advantages, it possesses certain lacunae concerning physicomechanical properties.
Ranganathan Ajay +5 more
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Hard spheres on the gyroid surface [PDF]
Interface Focus, 2012 Abstract We find that 48/64 hard spheres per unit cell on the gyroid minimal surface are entropically self-organized. Striking evidence is obtained in terms of the acceptance ratio of Monte Carlo moves and order parameters. The regular tessellations of the spheres can be viewed as hyperbolic tilings on the Poincaré disc with a ...
Tomonari, Dotera +2 more
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Mechanical characterisation of water-jet shot peened H13 tool steel surface
Journal of Mechanical Engineering and Sciences, 2022 A wear-resistant surface is achievable via the surface treatment of various sources such as laser, water-jet, ion beam, and plasma. This paper investigates the parameters of water-jet shot-peened H13 tool steel for minimum surface roughness and maximum ...
N. Anati +3 more
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Splitting (complicated) surfaces is hard [PDF]
Computational Geometry, 2006 The authors solve the optimization problem of finding the shortest simple cycle that separates an orientable surface (2-manifold with boundary) into two topologically non-trivial components. The cycle is a continuous map of the unit circle on the considered surface. Firstly, the proof that computing the shortest splitting cycle on a given surface is NP-
Erin W. Chambers +4 more
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Journal of Wood Science, 2021 The sapwood and heartwood of plantation sugi wood (Cryptomeria japonica), and plantation hinoki (Chamaecyparis obtusa) wood were flat-sawn into timbers, then kiln-dried to a MC level below 12%. These timbers were further processed into specific sizes and
Rongfeng Huang +3 more
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Effects of Adding TiO2 Nanoparticles on Flexural Strength and Hardness of Two New Commercial Flowable Dental Composites [PDF]
Journal of Dental Materials and Techniques, 2022 Introduction The present study aimed to investigate the effect of adding TiO2 nanoparticles on the flexural strength and hardness of two dental composites.
Fatemeh Koohpeima +2 more
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The surface hardness of tablets
Journal of Pharmacy and Pharmacology, 1970 AbstractA pneumatic micro-indentation apparatus has been used to determine the hardness of tablets of aspirin at various points on their diameter. All the tablets were 13 mm diameter; the compaction pressure and the particle size of the initial material were varied.
K, Ridgway, M E, Aulton, P H, Rosser
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Experimental study on grinding surface quality of DD9 nickel-based single crystal super-alloy
Hangkong gongcheng jinzhan, 2023 Turbine blade root are commonly processed by grinding, and the grinding process parameters determine the surface quality and fatigue performance.The effect and mechanism of grinding parameters are investigated on the surface roughness and hardness of ...
JIN Qichao +3 more
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