One of the significant strategies of the power systems is Economic Dispatch (ED) problem, which is defined as the optimal generation of power units to produce energy at the lowest cost by fulfilling the demand within several limits. The undeniable impacts of ramp rate limits, valve loading, prohibited operating zone, spinning reserve and multi-fuel option on the economic dispatch of practical p...

The optimal reactive power dispatch (ORPD) problem is formulated as a combinatorial optimization problem involving nonlinear objective function with multiple local minima. In this paper, as a new approach, different ant colony optimization (ACO) algorithms are applied to the reactive power dispatch problem. Ant system (AS), the firstly introduced ant colony optimization algorithm, and its direc...

The current taxi operation mode features high ratio of vacant taxies roaming the streets, while lots of potential customers complaining being unable to find a taxi. The major reason for this inefficiency is that the current taxi dispatch system is incapable of exchanging information between taxi drivers, customers and the dispatch system in a real-time manner. This paper presents an approach to...

-This paper addresses the vision of a new generation dispatch system for restructured power systems. As distributed generation, demand response and renewable energy resources become significant portions of overall system installed capacity, a better system dispatch tool for system control centers is required in order to cope with the increasing amount of uncertainties being introduced by the ne...

This paper presents a new genetic approach based on arithmetic crossover for solving the economic dispatch and environmentally constrained economic dispatch problems. Elitism, arithmetic crossover and mutation are used in the genetic algorithm to generate successive sets of possible operating policies. The proposed technique improves the quality of the solution. The employed arithmetic crossove...

In this research a multi-objective Imperialist Competitive Algorithm (MOICA) is applied for Environmental and Economic Power Dispatch (EED) problem. Due to the environmental concerns that arise from the emissions produced via fossil-fueled electric power plants, the classical economic dispatch, which operates electric power systems so as to minimize only the total fuel cost, can no longer be co...

Business applications in advanced logistics service are highly concurrent. In this paper, we propose a resource symmetric dispatch model for the concurrent and cooperative tasks of the Internet of Things. In the model, the terminals receive and deliver commands, data, and information with mobile networks, wireless networks, and sensor networks. The data and information are classified and proces...

BACKGROUND The aim of this study was to explore the experiences of ambulance dispatch personnel, identifying key stressors and their impact on staff well-being. METHODS Qualitative methodology was used. Nine semistructured interviews were conducted with National Health Service (NHS) ambulance Emergency Operations Centre (EOC) dispatch personnel in the UK between July and August 2014. Particip...

RATIONALE, AIMS AND OBJECTIVES Timely communication is important to ensure high-quality health care. To facilitate this, the Gastro Intestinal Oncology Center Amsterdam (GIOCA) stipulated to dispatch medical reports on the day of the patient's visit. However, with the increasing number of patients, administrative processes at GIOCA were under pressure, and this standard was not met for the majo...

The goal of this study was to evaluate associations between the meteorological conditions and the number of emergency cases for five distinctive causes of dispatch groups reported to SOS dispatch centre in Uppsala, Sweden. Center's responsibility include alerting to 17 ambulances in whole Uppsala County, area of 8,209 km2 with around 320,000 inhabitants representing the target patient group. So...