With the recent trend towards deregulating power systems around the world, transfer capability computation emerges as the key issue to a smoothly running power market with multiple transactions. Total transfer Capability (TTC) is the basic measure for evaluating Available transfer capability (ATC). This paper presents the calculation of TTC through an optimal power flow approach. The objective ...

Dynamic Channel Switching System (DCSS) has been proposed as a solution to improve the capacity of Wireless Mesh Networks (WMNs) which is compliant with IEEE 802.11 standards. DCSS divides wireless interfaces into data receiving and data sending interfaces. The receiving interfaces stay on specified channels, while the sending interfaces can be switched as necessary. A node sends the data by sw...

In restoring a power system after a major disturbance, system operators often encounter an excessive standing phase angle difference (SPA) between two buses of a circuit breaker when a transmission line is energized and results in a loop closure. Under such a condition, there is high risk of damage to nearby generators and other equipments for the breaker/loop closure operation. Since the SPA v...

In this work, a portable real-time wireless health monitoring system is developed. The system is used for remote monitoring of patients’ heart rate and oxygen saturation in blood. The system was designed and implemented using ZigBee wireless technologies. All pulse oximetry data are transferred within a group of wireless personal area network (WPAN) to database computer server. The sensor modul...

Cyberspace refers to new tools for marketers to improve the efficiency and effectiveness of marketing communications and offer new approaches to gain and retain customers. One of its aspects is online interpersonal influences. It can be said that viral marketing is an internet-based communication strategy that exploits the transmittable nature of information dissemination on the Internet. This ...

The continuous improvement of new energy penetration reduces the inertia system, which leads to frequency deviation and rate change (RoCoF) being easily exceeded. To improve stability sending-end power systems with large-scale renewable access via ultra-high voltage direct current (UHVDC), coordinated control for UHVDC participating in system regulation (FR) including primary FR inertial respon...

Web-based malware is pervasive. Miscreants compromise insecure hosts or even set up dedicated servers to distribute malware to unsuspecting users. This scourge is mainly fought by the voluntary action of private actors who detect and report infections to affected site owners, hosting providers and registrars. In this paper we describe an experiment to assess whether sending reports to affected ...

In this paper, we are analyzing the interactivity time, defined as the duration between two consecutive tasks such as sending emails, collecting friends and followers and writing comments in online social networks (OSNs). The distributions of these times are heavy tailed and often described by a power-law distribution. However, powerlaw distributions usually only fit the heavy tail of empirical...