Results 31 to 40 of about 408,011 (339)

Capability Enhancing of CO₂ Laser Cutting for PMMA Sheet Using Statistical Modeling and Optimization

Applied Sciences, 2023
Laser cutting is a widely used manufacturing process, and the quality of the resulting cuts plays a crucial role in its success. This research employed the Design of Experiments (DOE) to investigate the impact of input process parameters on kerf quality ...
Mahmoud Moradi, Mohammad Rezayat, Saleh Meiabadi, Mojtaba Karamimoghadam, Stephen Hillyard, Antonio Mateo, Giuseppe Casalino, Zammad Tanveer, Muhammad Adnan Manzoor, Muhammad Asad Iqbal, Omid Razmkhah   +10 more
doaj   +1 more source

A polyhedral approach for the Equitable Coloring Problem [PDF]

, 2011
In this work we study the polytope associated with a 0,1-integer programming formulation for the Equitable Coloring Problem. We find several families of valid inequalities and derive sufficient conditions in order to be facet-defining inequalities.
Bahiense, Campêlo, Daniel Severín, Das, Graciela Nasini, Isabel Méndez-Díaz, Januschowski, Kaibel, Kierstead, Kubale, Lih, Margot, Meyer, Méndez-Díaz, Pemmaraju, Tucker   +15 more
core   +2 more sources

Influence of the Heat Treatment Condition upon the High-Speed Cutting Mechanism of Aluminum Alloy A2017

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
This paper discusses the influence of heat treatment condition of aluminum alloy upon cutting mechanism. The orthogonal cutting experiments of A2017-T3 and A2017-O with a cutting speed of from 0.5 m/s to 160 m/s are conducted.
Masato SANDO, Tappei HIGASHI, Jun SHINOZUKA   +2 more
doaj   +1 more source

Infeasibility Cutting Plane for Unit Commitment Problem

CSEE Journal of Power and Energy Systems
This paper introduces a new type of cutting plane for the unit commitment (UC) problem, namely “infeasibility cutting plane”. The infeasibility cutting plane refers to a type of logic constraint that eliminates the combination of integer ...
Shengpeng Qu, Zhifang Yang
doaj   +1 more source

Mechanism analysis of cutting distortion of thin plate with high tensile strength steel for its prediction and control

Zhongguo Jianchuan Yanjiu
ObjectiveIn order to effectively control flame cutting precision of thin plate with high tensile strength steel, Generation mechanism of out-of-plane buckling distortion and in-plane bending distortion were investigated, and processing with dynamic ...
Jiangchao WANG, Shizhong DU, Xiangfei CHEN, Yexing NIU, Yang YANG, Hongquan ZHAO, Lei WU   +6 more
doaj   +1 more source

Surface Quality of Milled Birch Wood after Thermal Treatment at Various Temperatures

BioResources, 2015
The surface quality of thermally modified birch wood was examined after plane milling. The surface quality was assessed based on the arithmetic mean deviation of the assessed profile Ra.
Monika Kvietková, Milan Gaff, Miroslav Gašparík, Lukáš Kaplan, Štefan Barcík   +4 more
doaj   +1 more source

Exact penalization, level function method, and modified cutting-plane method for stochastic programs with second order stochastic dominance constraints [PDF]

, 2013
Level function methods and cutting plane methods have been recently proposed to solve stochastic programs with stochastic second order dominance (SSD) constraints.
Meskarian, R., Sun, H., Wang, Y., Xu, H.
core   +2 more sources

Cutting Force Prediction in Drilling of Titanium Alloy

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Cutting force in drilling of Ti-6Al-4V is studied with simulation based on a predictive model. In the force model, three-dimensional chip flow is made by piling up the orthogonal cuttings in the planes containing the cutting velocities and the chip flow ...
Shoichi TAMURA, Takashi MATSUMURA, Pedro J. ARRAZOLA   +2 more
doaj   +1 more source

How to avoid unintended valgus alignment in distal femoral derotational osteotomy for treatment of femoral torsional malalignment - a concept study

BMC Musculoskeletal Disorders, 2017
Background Defining the optimal cutting plane for derotational osteotomy at the distal femur for correction of torsion in cases of patellofemoral instability is still challenging.
Florian B. Imhoff, Bastian Scheiderer, Philip Zakko, Elifho Obopilwe, Franz Liska, Andreas B. Imhoff, Augustus D. Mazzocca, Robert A. Arciero, Knut Beitzel   +8 more
doaj   +1 more source

Revisiting a Cutting-Plane Method for Perfect Matchings

Open Journal of Mathematical Optimization, 2020
In 2016, Chandrasekaran, Végh, and Vempala (Mathematics of Operations Research, 41(1):23–48) published a method to solve the minimum-cost perfect matching problem on an arbitrary graph by solving a strictly polynomial number of linear programs.
Chen, Amber Q., Cheung, Kevin K. H., Kielstra, P. Michael, Winn, Avery D.   +3 more
doaj   +1 more source