The Network Design Problem (NDP) is one of the important problems in combinatorial optimization. Among the network design problems, the Multicommodity Capacitated Network Design (MCND) problem has numerous applications in transportation, logistics, telecommunication, and production systems. The MCND problems with splittable flow variables are NP-hard, which means they require exponential time t...

1. introduction by the passage of the industrial revolution and entrance to the post-industrial era, the change and variety in the functions of capitalistic powers, ict revolution, and the speeding up of globalization after the 1960s have brought about renewal of the operational, spatial, and managerial structures of cities. in line with the mentioned changes, the structural changes resulted fr...

In this paper, a comprehensive model for hub location-routing problem is proposed which no network structure other than connectivity is imposed on backbone (i.e. network between hub nodes) and tributary networks (i.e. networks which connect non-hub nodes to hub nodes). This model is applied in public transportation, telecommunication and banking networks. In this model locating and routing is c...

Abstract The rapidly aging society of Japan requires a quality transportation system that provides new mobility services combining innovative technologies to include all residents. present study carries out pilot test the world’s first connected public transport between autonomous buses (AB) and light rail transit (LRT). In this system, telecommunication two modes enabled bus fully self-drive p...

The fixed-charge Capacitated Multi-commodity Network Design (CMND) is a well-known problem of both practical and theoretical significance. Network design models represent a wide variety of planning and operation management issues in transportation telecommunication, logistics, production and distribution. In this paper, Ant Colony Optimization (ACO) based neighborhoods are proposed for CMND pro...

this paper tries to measure and analyze the trend of indicators of labor and capital productivity as well as total factor productivity (tfp) in the economic sectors introduced in the 4th five-year-development plan for the period within 1971-2003. according to the results, the productivity indicator throughout iran has increased 0/9% on average annually and the highest growth has been in the tel...

This paper investigates the role of pitch accent information in spoken-word recognition in listeners in Fukushima, Japan, whose dialect is accentless. Previous research revealed that accentless listeners were less sensitive to pitch accent than Tokyo Japanese listeners. The present study asked whether middle-aged listeners’ use of accent information would differ from that of young listeners. 40...