Results 21 to 30 of about 517,211 (302)
Proof verification and hardness of approximation problems
Proceedings., 33rd Annual Symposium on Foundations of Computer Science, 1992 The class PCP(f(n),g(n)) consists of all languages L for which there exists a polynomial-time probabilistic oracle machine that used O(f(n)) random bits, queries O(g(n)) bits of its oracle and behaves as follows: If x in L then there exists an oracle y ...
Sanjeev Arora +4 more
semanticscholar +1 more source
Nauka ta progres transportu, 2015 Purpose. The paper is devoted to the detailed analysis of interrelations at the contact point of friction pair «contact wire – current collector insert».
Yu. L. Bolshakov, A. V. Antonov
doaj +1 more source
Foods, 2022 Processing results in the transformation of pulses’ structural architecture. Consequently, digestion is anticipated to emerge from the combined effect of intrinsic (matrix-dependent) and extrinsic (processed-induced) factors.
Katharina Pälchen +5 more
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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
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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
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Modeling hardness of polycrystalline materials and bulk metallic glasses [PDF]
, 2011 Though extensively studied, hardness, defined as the resist ance of a material to deformation, still remains a challengi ng issue for a formal theoretical description due to its inherent mechani c l complexity.
Xing-Qiu Chen +3 more
semanticscholar +2 more sources
Degradation of polymer particle systems in agrocomplex
Research in Agricultural Engineering, 2013 One of the possibilities of recycling waste from blasting processes is the application of these secondary materials in polymeric matrix, where the primary material is replaced with the secondary one.
P. Valášek, M. Brožek
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Additive Manufacturing, 2019 In this paper, we printed Ti-6Al-4V SLM parts based on Taguchi design of experiment and related standards to measure and compare hardness with different mechanical properties that were obtained in our previous research such as density, strength ...
A. Khorasani +3 more
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Effect of sedimentation on the final hardness of polymeric particle composites
Research in Agricultural Engineering, 2012 In present days composite materials are the indispensable part of many branches. They make a foray into the branch of agricultural production, where they are getting to intensive development of systems utilized e.g. at soil processing.
P. Valášek, M. Müller, A. Proshlyakov
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Microstructural Evaluation of Inconel 718 and AISI 304L Dissimilar TIG Joints
Metals, 2023 Dissimilar welding joints of Inconel 718 (IN718) nickel superalloy with low-carbon AISI 304L austenitic steel (SS304L) were conducted using the Tungsten Inert Gas (TIG) welding process. The present investigation focuses on the effect of different welding
Dimitra Ioannidou +3 more
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