Results 21 to 30 of about 8,221 (257)

Elastoplastic Integration Method of Mohr-Coulomb Criterion

open access: yesGeotechnics, 2022
A new method for implicit integration of the Mohr-Coulomb non-smooth multisurface plasticity models is presented, and Koiter’s requirements are incorporated exactly within the proposed algorithm.
Tan Zhang   +3 more
doaj   +1 more source

AN EFFICIENT BRITWARI TECHNIQUE TO ENHANCE CANNY EDGE DETECTION ALGORITHM USING DEEP LEARNING

open access: yesICTACT Journal on Soft Computing, 2022
Artificial Intelligence edge detection refers to a set of mathematical techniques used to recognize digital image locations. The picture brightness plays a vital role in detecting dissimilarities and making decisions.
S Britto Ramesh Kumar, A Bhuvaneshwari
doaj   +1 more source

Smooth Solutions of Initial-Value Problems in Regions with Corners [PDF]

open access: yesProceedings of the American Mathematical Society, 1984
The method of images is used to show the existence and uniqueness of smooth solutions of initial-value problems in regions with corners.
openaire   +1 more source

Contour-Based Corner Detection and Classification by Using Mean Projection Transform

open access: yesSensors, 2014
Image corner detection is a fundamental task in computer vision. Many applications require reliable detectors to accurately detect corner points, commonly achieved by using image contour information.
Seyed Mostafa Mousavi Kahaki   +2 more
doaj   +1 more source

A Novel Local Smoothing Method for Five-Axis Machining With Time-Synchronization Feedrate Scheduling

open access: yesIEEE Access, 2020
This paper presents an analytical continuous smoothing method for the five-axis toolpath by simultaneously scheduling the tool position and tool orientation trajectories.
Xiaoyong Huang   +3 more
doaj   +1 more source

Improved A* Path Planning Method Based on the Grid Map

open access: yesSensors, 2022
In obstacle spatial path planning, the traditional A* algorithm has the problem of too many turning points and slow search speed. With this in mind, a path planning method that improves the A* (A-Star) algorithm is proposed. The mobile robot platform was
Yangqi Ou   +4 more
doaj   +1 more source

An Analytical Decoupled Corner Smoothing Method for Five-Axis Linear Tool Paths

open access: yesIEEE Access, 2019
Nowadays, the tool path in five-axis machining is usually described with linear segments. Tangential and curvature discontinuities of the linear tool path lead to poor machining efficiency and quality.
Xin Zhao   +4 more
doaj   +1 more source

Spline Trajectory Planning for Road-Like Path with Piecewise Linear Boundaries Allowing Double Corner Points

open access: yesSICE Journal of Control, Measurement, and System Integration, 2018
We consider a problem of trajectory planning for road-like path on the two-dimensional plane. As the basic tool for constructing trajectories, we employ smoothing splines using normalized uniform B-splines as the basis functions.
Hiroyuki Kano, Hiroyuki Fujioka
doaj   +1 more source

Double B-Spline Curve-Fitting and Synchronization-Integrated Feedrate Scheduling Method for Five-Axis Linear-Segment Toolpath

open access: yesApplied Sciences, 2020
The discontinuities of a five-axis linear-segment toolpath result in fluctuation in the feedrate, acceleration and jerk commands that lead to machine tool vibration and poor surface finish.
Xiangyu Gao   +5 more
doaj   +1 more source

Shear horizontal (SH) ultrasound wave propagation around smooth corners [PDF]

open access: yesUltrasonics, 2014
Shear horizontal (SH) ultrasound guided waves are being used in an increasing number of non-destructive testing (NDT) applications. One advantage SH waves have over some wave types, is their ability to propagate around curved surfaces with little energy loss; to understand the geometries around which they could propagate, the wave reflection must be ...
Petcher, P.A., Burrows, S.E., Dixon, S.
openaire   +2 more sources

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