Results 31 to 40 of about 922,585 (380)
Indentation Hardness Measurements at Macro-, Micro-, and Nanoscale: A Critical Overview
Tribology letter, 2017 The Brinell, Vickers, Meyer, Rockwell, Shore, IHRD, Knoop, Buchholz, and nanoindentation methods used to measure the indentation hardness of materials at different scales are compared, and main issues and misconceptions in the understanding of these ...
E. Broitman
semanticscholar +1 more source
Bone Material Properties of Human Phalanges Using Vickers Indentation
Orthopaedic Surgery, 2019 Objective To investigate the microhardness distribution throughout the human hand phalanges using the Vickers method, which can be used to directly evaluate the bone mechanical properties at tissue level and provide an alternative means to investigate ...
Bing Yin +5 more
doaj +1 more source
Trudy Odesskogo Politehničeskogo Universiteta, 2016 To prevent destruction of the elements made of optical ceramics the practical importance has the preliminary electron-beam treatment of their surfaces during the manufacturing stage of devices based on them.
I.V. Yatsenko
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Heliyon, 2021 In engineering projects (dams, tunnels, slope stability) the strength characteristics of the rocks affect the construction operations. It is sometimes difficult, time-consuming, and expensive to evaluate the engineering properties of solid rocks by ...
Ahmet Teymen
doaj
Effect of Reinforcement Type and Dispersion on the Hardening of Sintered Pure Aluminium
Metals, 2018 The homogeneity of dispersion and reinforcing of pure aluminium by multi-walled carbon nanotubes (MWCNT) through the application of a high speed sonication (340 Hz) assisted by ultrasonication (35 kHz) was evaluated, this method was termed “assisted ...
Omid Emadinia +2 more
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Frontiers in Bioengineering and Biotechnology, 2020 The local spatial heterogeneity of the material properties of the cortical and trabecular bone extracted from the mouse tibia is not well-known.
Valentina Pepe +7 more
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Hard Negative Examples are Hard, but Useful [PDF]
, 2020 Triplet loss is an extremely common approach to distance metric learning. Representations of images from the same class are optimized to be mapped closer together in an embedding space than representations of images from different classes. Much work on triplet losses focuses on selecting the most useful triplets of images to consider, with strategies ...
Hong Xuan +3 more
openaire +3 more sources
Automated soil hardness testing machine [PDF]
, 2007 This paper describes the design and performance of a mechatronic system for controlling a standard drop-hammer mechanism that is commonly used in performing outdoor soil or ground hardness tests. A low-cost microcontroller is used to control a hydraulic
Cubero, Samuel N. +1 more
core +2 more sources
Hardness Amplification of Optimization Problems [PDF]
, 2019 In this paper, we prove a general hardness amplification scheme for optimization problems based on the technique of direct products. We say that an optimization problem ?
Goldenberg, Elazar, Karthik C. S.,
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Contemporary Clinical Dentistry, 2016 Background: Despite the absence of dispute about the efficacy of bleaching agents, a prime concern is about their compromising effect on the enamel structure.
Maryam Khoroushi +3 more
doaj +1 more source