CoCl2-GIC (graphite intercalation compound) is a heterogeneous magnet, which forms a three-dimensional (3D) network of 2D ferromagnetic clusters. The successive phase transitions at Tcu and Tcl (Tcu) have been described by a hierarchical spin ordering from intra- to inter-cluster order....

The stochastic-agent-on-tree method for business valuation is proposed by applying the game theory to the agent-based model. The proposed method is reduced to the real option valuation method using approximations. Demand forecasting and business valuation for computer-related industries are...

We investigate the conductivity variation with density of compacted vapour-grown carbon fibre (VGCF). The results indicate a typical transition between a non-linear domain at low compaction conditions and a regime where the conductivity increases roughly linearly with density when the sample is...

In the previous papers[1]–[3], nonlinear continuous functions could be well simulated by nonlinear resistance. Its mathematical basis came from the applicability of the fractional power approximation. From a view of using transistor-junction characteristics, the use of exponential functions...