In order to solve the optimization problem of disk magnetic coupler, two schemes, orthogonal test and multiobjective genetic algorithm, were used optimize coupler maximize torque while reducing eddy current loss, then correctness results was verified by electromagnetic simulation experiments. The loss optimized normalized using comprehensive evaluation function. After algorithm optimization, va...

Through orthogonal experimental design, the influence of water-binder ratio, binder-sand ultrafine mineral admixture content, and steel fiber content on fluidity basic mechanical properties rapid-repair materials was studied. The optimal mixing ratio parameters were determined, its swelling shrinkage performance microstructure analyzed. results showed that most significant factors affecting mat...

An orthogonal double cover (ODC) of the complete graph is a collection of graphs such that every two of them share exactly one edge and every edge of the complete graph belongs to exactly two of the graphs. In this paper, we consider the case where the graph to be covered twice is the complete bipartite graph Kmn,mn (for any values ofm,n) and all graphs in the collection are isomorphic to certa...