Results 21 to 30 of about 191,202 (337)

Crystal Orientation Effect on the Subsurface Deformation of Monocrystalline Germanium in Nanometric Cutting

open access: yesNanoscale Research Letters, 2017
Molecular dynamics simulations of nanometric cutting on monocrystalline germanium are conducted to investigate the subsurface deformation during and after nanometric cutting.
Min Lai, Xiaodong Zhang, Fengzhou Fang
doaj   +1 more source

MODELING OF ROUGH ROTARY MILLING OF CRANKSHAFT PINS [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2023
The development of the modern automotive industry requires a quick adaptation of new production methods. This is possible thanks to software capable of simulating manufacturing processes.
Kacper CIEŚLAR, Stanisław PŁONKA
doaj   +1 more source

Automating cutting planes is NP-hard [PDF]

open access: yesProceedings of the 52nd Annual ACM SIGACT Symposium on Theory of Computing, 2020
Full version of the conference version at STOC 2020 by the same ...
Göös, Mika   +3 more
openaire   +2 more sources

A new family of facet defining inequalities for the maximum edge-weighted clique problem [PDF]

open access: yes, 2016
This paper considers a family of cutting planes, recently developed for mixed 0–1 polynomial programs and shows that they define facets for the maximum edge-weighted clique problem.
Djeumou Fomeni, Franklin
core   +1 more source

Depth lower bounds in Stabbing Planes for combinatorial principles [PDF]

open access: yesLogical Methods in Computer Science
Stabbing Planes (also known as Branch and Cut) is a proof system introduced very recently which, informally speaking, extends the DPLL method by branching on integer linear inequalities instead of single variables.
Stefan Dantchev   +3 more
doaj   +1 more source

Geometrical analysis of thread milling – Part 1: Evaluation of tool angles [PDF]

open access: yes, 2010
Thread milling is a method which is increasingly used for machining thread. For this operation, a helical interpolation is required. Furthermore, the thread mill is a tool whose geometry is rather complex.
FROMENTIN, Guillaume, POULACHON, Gérard
core   +2 more sources

An alternating linearization bundle method for a class of nonconvex nonsmooth optimization problems

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we propose an alternating linearization bundle method for minimizing the sum of a nonconvex function and a convex function, both of which are not necessarily differentiable. The nonconvex function is first locally “convexified” by imposing
Chunming Tang, Jinman Lv, Jinbao Jian
doaj   +1 more source

Accuracy and Technical Predictability of Computer Guided Bone Harvesting from the Mandible: A Cone-Beam CT Analysis in 22 Consecutive Patients

open access: yesJournal of Functional Biomaterials, 2022
This study assesses the accuracy and technical predictability of a computer-guided procedure for harvesting bone from the external oblique ridge using a patient-specific cutting guide.
Luca De Stavola   +6 more
doaj   +1 more source

A Static Voltage Security Region for Centralized Wind Power Integration—Part I: Concept and Method

open access: yesEnergies, 2014
When large wind farms are centrally integrated in a power grid, cascading tripping faults induced by voltage issues are becoming a great challenge. This paper therefore proposes a concept of static voltage security region to guarantee that the voltage ...
Tao Ding   +4 more
doaj   +1 more source

Hierarchical distributed optimization of constraint-coupled convex and mixed-integer programs using approximations of the dual function

open access: yesEURO Journal on Computational Optimization, 2023
In this paper, two new algorithms for dual decomposition-based distributed optimization are presented. Both algorithms rely on the quadratic approximation of the dual function of the primal optimization problem.
Vassilios Yfantis   +4 more
doaj   +1 more source

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