Results 91 to 100 of about 42,675 (259)

Approximating the double-cut-and-join distance between unsigned genomes

open access: yesBMC Bioinformatics, 2011
In this paper we study the problem of sorting unsigned genomes by double-cut-and-join operations, where genomes allow a mix of linear and circular chromosomes to be present.
Yu Jiadong, Sun Ruimin, Chen Xin
doaj   +1 more source

On path-sequential labellings of cycles

open access: yesDiscrete Mathematics, 2000
Consider a labelling of the vertices of the cycle \(C_n\) by the integers \(0, 1, \ldots, n-1\), each vertex obtaining a distinct label. Such a labelling is called \(k\)-sequential, when the \(n\) sums of \(k\) adjacent labels form a set of consecutive integers.
openaire   +1 more source

Even cycle creating paths [PDF]

open access: yesJournal of Graph Theory, 2019
AbstractWe say that two graphs on the same vertex set are ‐creating if the union of the two graphs contains as a subgraph. Let be the maximum number of pairwise ‐creating Hamiltonian paths of the complete graph . The behavior of is much better understood than the behavior of , the former is an exponential function of whereas the latter is larger ...
openaire   +4 more sources

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

Decomposition of Regular Bipartite Graphs Into Hamiltonian Cycles (Paths) and S3

open access: yesJournal of Mathematics
Let G be either a complete bipartite graph with n (even) vertices in each partite or a complete bipartite graph with n (odd) vertices in each partite plus a 1‐factor.
null V. Nalini, null S. Jeevadoss
doaj   +1 more source

Effects of loading frequency on cyclic parameters of unsaturated Zenoz kaolin

open access: yesE3S Web of Conferences, 2016
According to the considerable effects of the loading frequency on the cyclic behaviour of the soils and lack of the sufficient and precise data in this field for the unsaturated soils, more attention needs to be paid to the experimental investigations in
Mojezi Mohsen   +2 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Equitable Coloring on Total Graph of Bigraphs and Central Graph of Cycles and Paths

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
The notion of equitable coloring was introduced by Meyer in 1973. In this paper we obtain interesting results regarding the equitable chromatic number 𝜒= for the total graph of complete bigraphs 𝑇(𝐾𝑚,𝑛), the central graph of cycles 𝐶(𝐶𝑛) and the central ...
J. Vernold Vivin   +2 more
doaj   +1 more source

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

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