Results 91 to 100 of about 47,947 (303)

Investigation of the Effects of Freeze-Thaw Cycles on Geomechanical and Acoustic Characteristics of Tuff Specimens under Different Stress Paths

open access: yesAdvances in Civil Engineering, 2020
In the process of development and construction of open-pit mine slope in the high altitude and cold area, freeze-thaw (F-T) cycles have an important impact on rock engineering structure.
Yong-gang Xiao   +5 more
doaj   +1 more source

About Path and Cycle Graphs

open access: yesFormalized Mathematics
Summary In this article path and cycle graphs are formalized in the Mizar system.
openaire   +2 more sources

Extension of paths and cycles for hypergraphs [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2014
Abstract In [G.Y. Katona and H.A. Kierstead, Hamiltonian chains in hypergraphs, J. Graph Theory (1999) 30(3): 205–212] we defined the hamiltonian cycle in hypergraphs in a new way. The definition can be extended to paths and cycles as well. There are many results for hypergraphs that uses the traditional path and cycle definition of Berge, so almost ...
openaire   +2 more sources

Optimization of the Production of Rubber Compounds Using Mathematical Models

open access: yesAdvanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle   +7 more
wiley   +1 more source

Paths, Trees and Cycles in Tournaments

open access: yes, 2008
We survey results on paths, trees and cycles in tournaments. The main subjects are hamiltonian paths and cycles, vertex and arc disjoint paths with prescribed endvertices, arc-pancyclicity, oriented paths, trees and cycles in tournaments.
Jørgen Bang-Jensen, Gregory Gutin
core  

Existence of Δλ-cycles and Δλ-paths [PDF]

open access: yes, 1988
A Cycle C of a graph G is called a Dλ-cycle if every component of G - V(C) has order less than λ A Dλ-path is defined analogously. Dλ-cycles and Dλ-paths were introduced by Veldman.
Broersma, H.J., Broersma, H.J.; id_orcid
core   +1 more source

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

open access: yesAdvanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann   +2 more
wiley   +1 more source

Euler paths and cycles

open access: yes, 2012
У статті розглядаються Ейлерові шляхи й цикли.В статье рассматриваются Эйлеровые пути и циклы.The article deals with Euler paths and ...
Рудик, Олександр Борисович
core  

Decomposition of hypercube graphs into paths and cycles having k edges

open access: yesAKCE International Journal of Graphs and Combinatorics
For an even graph G and positive integer p, q, and k, the pair (p, q) is an admissible pair if [Formula: see text]. If a graph G admits a decomposition into p copies of [Formula: see text], the path of length k, and q copies of Ck, the cycle of length k,
D. Saranya   +3 more
doaj   +1 more source

Decompositions of digraphs into paths and cycles

open access: yesJournal of Combinatorial Theory, Series B, 1985
If A denotes a subset of the vertex set V of a directed graph G, let f(A) denote the number of arcs directed from a vertex of A to a vertex of \(V\setminus A\); let \(\lambda_ G\) denote the supremum of f(A) over all subsets A. The author shows, among other things, that there exists a partition of the arcs of any directed graph G into at most ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy