In this paper, we show the existence of new families of spatial central configurations for the n + 3-body problem, n >= 3. We study spatial central configurations where n bodies are at the vertices of a regular n-gon T and ...

In this paper we show the existence of three new families of stacked spatial central configurations for the six-body problem with the following properties: four bodies are at the vertices of a regular tetrahedron and the ...

In this paper we present further studies of recurrent configurations of chip-firing games on Eulerian directed graphs (simple digraphs), a class on the way from undirected graphs to general directed graphs. A computational ...

The structural revision of natural (+)-diplopyrone (ND) was achieved by quantum NMR calculations. A DP4/J-DP4/DP4+ tandem suggested 3 as the most likely structure, but ECD calculations did not match the experimental values. ...

Abstract. The objective of this research is to develop an approach to representing and satisfying constraints during the cooperative configuration design of complex objects with hierarchical structure. Designers often ...

Nonlinear transmission lines (NLTLs) using varactor diodes can produce high-frequency waves on the order of some tens of megahertz. They reach only low power signals, and a way to improve the voltage modulation depth (VMD) ...