Purpose – Intelligent transportation systems (ITS) are defined as new infrastructures that combine people, roads and vehicles over the basis of modern embedded systems with enhanced digital connectivity. ITS is fast becoming a reality, favored in their development by the use of the internet. The purpose of this paper is to analyze the feasibility of road-traffic management systems, using the in...

Large public events such as sporting events, concerts, fairs and street festivals are quite common in metropolitan areas. Because of the high frequency of such events and the increasing number of involved parties, the stakeholders responsible for the organization and execution have to cope with increasing complexity and shortening time frames for planning and preparation. Especially in public t...

In cases of power outages the communication of organizations responsible for recovery work (emergency services, public administration, energy network operators) to the public poses several challenges, primarily the breakdowns of many communication infrastructures and therefore the limitations of the use of classical communication media. This paper surveys technical concepts to support crisis co...

OBJECTIVE To determine the preparedness level of hospitals against natural disasters in Bandar Abbas, Iran. METHODS The cross-sectional, descriptive study was conducted in all the 9 hospitals in Bandar Abbas, Iran, during 2012. The required data was collected using a standard checklist comprising 220 items in 10 areas. It was completed for each hospital using observations and interviews. SPSS...

In the context of Fifth Generation (5G) mobile networks, the concept of “slice as a service” (SaaS) promotes mobile network operators to flexibly share infrastructures with mobile service providers and stakeholders. However, it also challenges with an emerging demand for efficient online algorithms to optimize the request-and-decision-based inter-slice resource management strategy. Based on gen...

priority queues have a great importance in the study of computer communication networks in which different types of traffic require different quality of service standards. the discrete-time non-preemptive priority queuing model with priority jumps is proposed in this paper. on the basis of probability generating functions mean system contents and mean queuing delay characteristics are obtained....

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...

Most of current industries and their critical infrastructure rely heavily on the Internet for everything. The increasein the online services and operations for various industries has led to an increase in different security threats and maliciousactivities. In US, the department of homeland security reported recently that there have been 200 attacks on core criticalinfrastructures i...