Results 21 to 30 of about 602,649 (335)

Influence of roundness error screw on running characteristics of sliding bearing based on SDT [PDF]

open access: yesMATEC Web of Conferences, 2022
In order to study the influence of roundness error on the oil film characteristics of journal bearing rotor system, a dynamic model of journal bearing rotor system with roundness error was established, and a new generalized roundness error equation is ...
Chen Zhenyu, Xu Wubin, Li Bing
doaj   +1 more source

Separation Of Non-Periodic And Periodic 2D Profile Features Using B-Spline Functions

open access: yesMetrology and Measurement Systems, 2015
The form, waviness and roughness components of a measured profile are separated by means of digital filters. The aim of analysis was to develop an algorithm for one-dimensional filtering of profiles using approximation by means of B-splines.
Janecki Dariusz   +2 more
doaj   +1 more source

A Low-Cost, Repeatable Method for 3D Particle Analysis with SfM Photogrammetry

open access: yesGeosciences, 2023
The characterisation of particle shape is an important analysis in the field of sedimentary geology. At finer scales, it is key for understanding sediment transport while at coarser scales, such as boulders, it is vital for coastal protection.
Mohit Tunwal, Aaron Lim
doaj   +1 more source

DEM study on effect of particle roundness on biaxial shearing of sand

open access: yes, 2021
In this study, discrete element method (DEM) simulations of a biaxial test were used to examine the effect of particle roundness on the mechanical behavior of sands at both the macro and micro scales.
Mengmeng Wu   +2 more
semanticscholar   +1 more source

Morphometric Analysis of Chili Leaves with Yellow Curly Symptom Using Digital Image Processing Approach and Data Mining Algorithm

open access: yesJurnal Fitopatologi Indonesia, 2023
Gejala kuning keriting pada daun cabai umumnya disebabkan oleh infeksi Begomovirus. Daun tanaman terinfeksi tidak hanya mengalami perubahan warna sebagai indikator rusaknya klorofil tetapi juga mengalami perubahan morfologi bentuk.
Asmar Hasan   +8 more
doaj   +1 more source

Compute Less to Get More: Using ORC to Improve Sparse Filtering [PDF]

open access: yes, 2015
Sparse Filtering is a popular feature learning algorithm for image classification pipelines. In this paper, we connect the performance of Sparse Filtering with spectral properties of the corresponding feature matrices.
Guadarrama, Sergio, Lederer, Johannes
core   +1 more source

Simulation of Roundness, Hardness and Microstructure of Bearing Rings with Thin Cross Sections by Using Sysweld

open access: yesCommunications, 2014
The roller bearing is a component which helps to reduce friction on relative rotational or sliding movements of the machine parts. Nowadays, there are many kinds of rolling bearings whose production is constantly improving due to increasing demands on ...
Peter Fabian   +2 more
doaj   +1 more source

Improvement of a Stitching Operation in the Stitching Linear-Scan Method for Measurement of Cylinders in a Small Dimension

open access: yesApplied Sciences, 2021
Attempts are made in this paper to improve the quality of the stitching between adjacent arc-profiles in the stitching linear-scan method for the roundness measurement of a cylinder in a small dimension.
Qiaolin Li   +5 more
doaj   +1 more source

A novel eccentric lapping machine for finishing advanced ceramic balls [PDF]

open access: yes, 2001
Advanced ceramic balls are used extensively in hybrid precision ball bearings and show advantages in high speed, high temperature, high load and hostile environment.
Hadfield, M, Kang, J
core   +1 more source

Study on Elucidation of the Roundness Improvement Mechanism of the Internal Magnetic Abrasive Finishing Process Using a Magnetic Machining Tool

open access: yesJournal of Manufacturing and Materials Processing, 2023
The magnetic abrasive finishing process using the magnetic machining tool was proposed to finish the internal surface of the thick tube (the thickness of the tube is 5~30 mm). It has been proved that this process can improve the roundness while improving
Jiangnan Liu, Yanhua Zou
doaj   +1 more source

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