DEM calibration insights on the role of particle shape for sub 2 mm particles [PDF]
Scientific ReportsThis study introduces a comprehensive calibration technique for discrete element method (DEM) simulations. Its focus is on particles smaller than 2 mm and this showcase shows comparison between spherical and polyhedral particle shape calibration.
Jan Diviš +7 more
doaj +2 more sources
Cache-efficient and vectorized parallel dynamic programming for RNA folding. [PDF]
PLoS ONEIn this article, we present an efficient and concise OpenMP implementation of the Nussinov RNA folding algorithm, a well-known representative of non-serial polyadic dynamic programming (NPDP).
Mateusz Gruzewski, Marek Palkowski
doaj +2 more sources
Modification of Octavinyl POSS and Its Effect on the Mechanical Properties and Thermal Stability of Silicone Rubber/POSS Composites [PDF]
NanomaterialsOctavinyl polyhedral oligomeric silsesquioxane (POSS) can be used to improve the thermal stability of silicone rubber (SR). However, POSS nanoparticles tend to agglomerate in SR matrix, negatively affecting the reinforcement role of POSS for SR, and ...
Junjie Peng, Yong Zhang
doaj +2 more sources
Adaptive data driven multi period power supply recovery method for distribution networks [PDF]
Scientific ReportsIn the process of distribution network fault recovery, in order to better address the issues caused by the uncertainty of new energy power output, this paper proposes a multi period power supply recovery method for distribution networks based on adaptive
Xi Ye +4 more
doaj +2 more sources
Polyhedral complementarity problem with quasimonotone decreasing mappings [PDF]
Yugoslav Journal of Operations Research, 2023 The fixed point problem of piecewise constant mappings in Rn is investigated. This is a polyhedral complementarity problem, which is a generalization of the linear complementarity problem.
Shmyrev Vadim I.
doaj +1 more source
A polyhedral approach to bisubmodular function minimization [PDF]
Operations Research Letters, 2021 We consider minimization problems with bisubmodular objective functions. We propose valid inequalities, namely the poly-bimatroid inequalities, and provide a complete linear description of the convex hull of the epigraph of a bisubmodular function. Furthermore, we develop a cutting plane algorithm for constrained bisubmodular minimization based on the ...
Qimeng Yu, Simge Küçükyavuz
openaire +2 more sources
CFD-DEM Simulation of Fluidization of Polyhedral Particles in a Fluidized Bed
Energies, 2021 Fluidization of non-spherical particles is a common process in energy industries and chemical engineering. Understanding the fluidization of non-spherical particles is important to guide relevant processes.
Zihan Liu, Huaqing Ma, Yongzhi Zhao
doaj +1 more source
A polyhedral approach to edge coloring [PDF]
Operations Research Letters, 1991 The edge coloring problem is formulated as an integer linear program of covering edges by matchings. For the NP-hard case of 3-regular graphs a linear programming relaxation with additional constraints is considered using column generation. The theory and the algorithm use the fact that the chromatic index is equal to 3 or 4.
NEMHAUSER, GL, PARK, S Park, Sungsoo
openaire +3 more sources
AUTOMATIC 3D RECONSTRUCTION OF COMPLEX BUILDINGS FROM INCOMPLETE POINT CLOUDS WITH TOPOLOGICAL-RELATION CONSTRAINTS [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Automatic 3D building reconstruction from laser scanning or photogrammetric point clouds has gained increasing attention in the past two decades. Although many efforts have been made, the complexity of buildings and incompletion of point clouds, i.e ...
Y. Li, B. Wu
doaj +1 more source
On the Graovac-Pisanski index [PDF]
Kragujevac Journal of Science, 2017 The Graovac-Pisanski index (GP index) is an algebraic approach for generalizing the Wiener index. In this paper, we compute the difference between the Wiener and GP indices for an infinite family of polyhedral graphs.
Hakimi-Nezhaad Mardjan +1 more
doaj +1 more source