Results 31 to 40 of about 140,088 (167)

A New Branching Rule to Solve the Capacitated Lot Sizing and Scheduling Problem with Sequence Dependent Setups

open access: yesTrends in Computational and Applied Mathematics, 2018
In this paper, we deal with the Capacitated Lot Sizing and Scheduling Problem with sequencedependent setup times and costs - CLSD model. More specifically, we propose a simple reformulation for the CLSD model that enables us to define a new branching ...
Willy Alves de Oliveira   +1 more
doaj   +1 more source

The massless non-adjacent double off-shell scalar box integral — branch cut structure and all-order epsilon expansion

open access: yesJournal of High Energy Physics, 2023
We generalize the result of our recent paper on the massless single off-shell scalar box integral to the case of two non-adjacent end points off the light cone.
Juliane Haug, Fabian Wunder
doaj   +1 more source

Pruning by Isomorphism in Branch-and-Cut

open access: yesMathematical Programming, 2001
The paper presents a branch-and-cut for solving (0, 1) integer linear programs having a large symmetry group. The group is used for pruning the enumeration tree and for generating cuts. The cuts are non-standard, cutting integer feasible solutions but leaving the optimal value of the problem unchanged.
openaire   +2 more sources

Research on topological structure and simulation of hybrid DC circuit breaker

open access: yesThe Journal of Engineering, 2019
At present, the hybrid DC circuit breaker (ABB company's Hybrid DC circuit breaker as the representative scheme) must be equipped with the radiator because of a long-time current passing through the power electronic devices in the load-control-switch ...
Chu Zhuang   +3 more
doaj   +1 more source

Probing the singularities of the Landau-Gauge gluon and ghost propagators with rational approximants

open access: yesJournal of High Energy Physics, 2023
We employ Padé approximants in the study of the analytic structure of the four-dimensional SU(2) Landau-gauge gluon and ghost propagators in the infrared regime.
D. Boito   +3 more
doaj   +1 more source

BDDs in a Branch and Cut Framework [PDF]

open access: yes, 2005
Branch & Cut is today's state-of-the-art method to solve 0/1-integer linear programs. Important for the success of this method is the generation of strong valid inequalities, which tighten the linear programming relaxation of 0/1-IPs and thus allow for early pruning of parts of the search tree.
Becker, Bernd   +3 more
openaire   +3 more sources

Integrated Parametric Graph Closure and Branch-and-Cut Algorithm for Open Pit Mine Scheduling under Uncertainty

open access: yesMining, 2022
Open pit mine production scheduling is a computationally expensive large-scale mixed-integer linear programming problem. This research develops a computationally efficient algorithm to solve open pit production scheduling problems under uncertain ...
Devendra Joshi   +3 more
doaj   +1 more source

Optimizing bent branch numbers improves transpiration and crop water productivity of cut rose (Rosa hybrida) in greenhouse

open access: yesAgricultural Water Management
Bent branches are commonly utilized in cut roses to enhance commercial flower quality through increased nutrient production and biomass. However, the ideal number of bent branches concerning crop water productivity remains unknown.
Xuanpeng Yin   +8 more
doaj   +1 more source

Location-Routing Problem of Emergency Facilities under Uncertain Demand by Branch-Price and Cut

open access: yesJournal of Mathematics, 2021
This paper studies the location-routing problem of emergency facilities with time window under demand uncertainty. We propose a robust mathematical model in which uncertain requirements are represented by two forms: the support set defined by cardinal ...
Xuchen Deng
doaj   +1 more source

Dynamic Three-Dimensional Surface Reconstruction Approach for Continuously Deformed Objects

open access: yesIEEE Photonics Journal, 2021
For dynamic three-dimensional (3-D) surface reconstruction of continuously deformed objects, an efficient method employing one fringe pattern is proposed.
Jianhua Wang, Yanxi Yang, Yuguo Zhou
doaj   +1 more source

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