In this Letter we study implications of the possible excess of 21-cm line global signal at the epoch of cosmic dawn on the evolutions of a class of dynamically interacting dark energy (IDE) models.We firstly summarize two dynamical mechanisms in which different background evolutions can exert considerable effects on the 21-cm line global signal.One
In order to revel the hydro-mechanical coupling characteristics of granite at various pore pressures and confining pressures.The spatial micro-pore structure before and after the failure of granite is extracted by high-precision CT scanning system.The results show that the UCS of the damaged granite decreases with the increase of pore pressure unde
In a weak positional game, two players, Maker and Breaker, alternately claim vertices of a hypergraph until either Maker wins by getting a complete edge or all vertices are taken without this happening, a Breaker win.For the class of Gift Cards almost-disjoint hypergraphs of rank three (edges with up to three vertices only and edge-intersections on
Blockchain techniques have been actively used in a wide range of applications owing to their unforgeable characteristics.Currently, many blockchain platforms are applying a pBFT-based Delegate PoS(DPoS) consensus mechanism in their networks, because it ensures a quick consensus process since only a few validators participate in the consensus proces
This Canes Accessories paper presents a competitive supply chain network design problem in which one, two, or three supply chains are planning to enter the price-dependent markets simultaneously in uncertain environments and decide to set the prices and shape their networks.The chains produce competitive products either identical or highly substitu