In this paper we compare the regional network relationships of small and medium-sized enterprises (SMEs) in the mechanical engineering and related metal manufacturing industries in Japan and Germany. We show that the structure of network relationships is still largely determined by traditional...

We previously proposed the gas phase stoichiometric ratio (<em>SRgas</em>) as an index to evaluate NO<em>_x</em> concentration in fuel-rich flames. The<em> SRgas</em> index was defined as the amount of fuel required for stoichiometric combustion/amount of gasified fuel, where the amount of gasified fuel was the amount of...

Evolution of cooperation by reciprocity has been studied using two-player and n-player repeated prisoner's dilemma games. An interesting feature specific to the n-player case is that players can vary in generosity, or how many defections they tolerate in a given round of a repeated game....

Evolution of cooperation by reciprocity has been studied using two-player and n-player repeated prisoner’s dilemma games. An interesting feature specific to the n-player case is that players can vary in generosity, or how many defections they tolerate in a given round of a repeated game....