Results 21 to 30 of about 59,793 (262)
Effect of cutting path strategy on the quality of convexly curved surface and its energy consumption
International Journal of Lightweight Materials and Manufacture, 2020 The use of aluminium in automotive and aerospace parts as well as low-pressure moulds are widely popular in the manufacturing industry. The good machinability of its alloy is one of the many reasons why aluminium is a default choice.
Ali Akhavan Farid +1 more
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An Optimal Algorithm for Planning Shearer Trailing Drum Cutting Path
Shock and Vibration, 2021 The intelligent adaptive cutting of the shearer is one of the key technologies to realize the intelligent working face. However, since the “memory cut” technology is the mainstream technology, which cannot actively adapt to the coal seam variations, the ...
Hong Zhang +6 more
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Sequence Hypergraphs: Paths, Flows, and Cuts [PDF]
, 2018 We introduce sequence hypergraphs by extending the concept of a directed edge (from simple directed graphs) to hypergraphs. Specifically, every hyperedge of a sequence hypergraph is defined as a sequence of vertices (not unlike a directed path). Sequence hypergraphs are motivated by problems in public transportation networks, as they conveniently ...
Böhmová, Kateřina +4 more
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Research on Autonomous Cutting Method of Cantilever Roadheader
Energies, 2022 Roadway excavation is the leading project in coal mining, and the cantilever roadheader is the main equipment in roadway excavation. Autonomous cutting by cantilever roadheaders is the key to realize safe, efficient and intelligent tunneling for ...
Ziyue Xu +5 more
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$k$-cut on paths and some trees
Electronic Journal of Probability, 2019 We define the (random) $k$-cut number of a rooted graph to model the difficulty of the destruction of a resilient network. The process is as the cut model of Meir and Moon except now a node must be cut $k$ times before it is destroyed. The first order terms of the expectation and variance of $\mathcal{X}_{n}$, the $k$-cut number of a path of length $n$,
Cai, Xing Shi +3 more
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Evolutionary Algorithms for Optimization Sequence of Cut in the Laser Cutting Path Problem
Applied Sciences, 2023 Efficiently cutting smaller two-dimensional parts from a larger surface area is a recurring challenge in many manufacturing environments. This point falls under the cut-and-pack (C&P) problems.
Bonfim Amaro Junior +4 more
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Surface Roughness Prediction Using Circular Interpolation Based on Artificial Neural Network in Milling Operation [PDF]
Engineering and Technology Journal, 2016 This paper presents a method togenerate tool path and get G-codes for complex shapes depending on mathematical equations without using the package programs that use linear interpolation.
Maan Aabid Tawfiq +2 more
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Lattice path moments by cut and paste
Advances in Applied Mathematics, 2003 The authors consider lattice paths in the coordinate plane, whose step types consist of \((1,1)\), \((1,-1)\), and possibly of one or more horizontal steps. For the set of such paths running from \((0, 0)\) to \((n+2,0)\) and remaining elsewhere strictly above the horizontal axis, the authors define and study a zeroth moment (cardinality), a first ...
PINZANI, RENZO +3 more
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International Journal of Pure and Applied Mathematics Research, 2023 \documentclass[10pt,letterpaper]{article} \usepackage[top=0.85in,left=2.79in,footskip=0.79in,marginparwidth=2in]{geometry} \usepackage{amsmath, amsthm, amscd, amsfonts, amssymb, graphicx, tikz, color} \usepackage[bookmarksnumbered, colorlinks, plainpages]{hyperref} % use Unicode characters - try changing the option if you run into troubles with special
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Applied Sciences, 2023 Space adaptability between mining equipment and coal-rock mass, to ensure the machines cut in a coal seam, is an importance technique in longwall mining automation.
Zenglun Guan +3 more
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