Hub covering location problem, Network design,   Single machine scheduling, Genetic algorithm,   Shuffled frog leaping algorithm   Hub location problems (HLP) are synthetic optimization problems that appears in telecommunication and transportation networks where nodes send and receive commodities (i.e., data transmissions, passengers transportation, express packages, postal deliveries, etc....

The Acceleration Grid Power Supply of the MITICA test facility in Padova (Italy) is currently under commissioning. power conversion system, DC generator, and High Voltage equipment have been individually commissioned, whereas integration tests are ongoing. It a challenging process due to unconventional application, variety different electrical technologies involved complexity interfaces. During...

The hub location problem is employed for many real applications, including delivery, airline and telecommunication systems and so on. This work investigates on hierarchical hub network in which a three-level network is developed. The central hubs are considered at the first level, at the second level, hubs are assumed which are allocated to central hubs and the remaining nodes are at the third ...

Economies of agglomeration are central to the understanding of the emergence of industrial clustering. However, existing models that incorporate such agglomeration economies have been largely neglecting the vast amount of empirical evidence on inter-sectoral differences in the patterns of industrial concentration. In this paper, we propose a baseline model of firm location in presence of dynami...

background: accurate diagnosis is key to success. diagnosing the pulpal status in varied clinical situations poses a challenge to the clinician. electric pulp test (ept) is one of the valuable attempts in evaluating the sensibility of pulp tissue. the aim of this study was to find out and compare the threshold levels and optimal electrode placement site for ept in fluorosed and nonfluorosed ant...

Location-based services (LBS) are very important mobile app services, which provide diverse mobility services for mobile users anywhere and anytime. This brings new demands, issues, and challenges in mobile application testing. Today, mobile applications provide location-based service functions based on dynamic location contexts, mobile users and their travel patterns to deliver location-based ...