This paper proposes a sensitivity based technique for optimal placement of Unified Power Flow Controller (UPFC) to enhance voltage stability margin under contingencies. The sensitivity of system loading factor with respect to the reactive power flowing through lines computed for the system intact case and critical contingency cases have been used to decide optimal location for the placement of ...

The power domination problem is to find a minimum placement of phase measurement units (PMUs) for observing the whole electric power system represented by a graph G. The number of such a minimum placement of PMUs is called the power domination number of G and is denoted by γp(G). Finding γp(G) of an arbitrary graph is known to be NP-complete. In this paper, we deal with the power domination pro...

Along with economic growth of countries which leads to their increased energy requirements,the problem of power quality and reliability of the networks have been more considered andin recent decades, we witnessed a noticeable growing trend of distributed generation sources(DG) in distribution networks. Occurrence of DG in distribution systems, in addition tochanging the utilization of these sys...

Renal transplantation is the most common procedure in solid organ transplantation. Compered to dialysis, renal offers better quality of life and overall survival for patients. Due improvement surgical technique, imunosupressive therapy medical monitor-ing general, outcome treatment has significantly improved today. The importance anesthesiologists correct performance all procedures during this ...

Distributed generation (DG) will play an important role in future power generation systems, especially in stand-alone applications. Three phase four-leg inverter is a well-known topology which can be used as an interface power converter for DGs. Thanks to the fourth leg to provide the neutral path, the four-leg inverter is able to supply balanced loads as well as unbalanced loads. In this paper...

Previous research suggested that eye gaze as a social cue plays a crucial role in early word learning. In light of this, we investigated another kind of embodied social cue, pointing, and asked how it relates to word learning in young children as it is ubiquitous in day – to – day parentchild interactions. Parents were asked to narrate a story book displayed on a computer screen. Each page of t...

Some heart diseases need long-term monitoring to diagnose. In this paper, we present a wearable single lead ECG monitoring device with low power consumption based on MSP430 and single-lead ECG front-end AD8232, which could acquire and store patient’s ECG data for 7 days continuously. This device is available for long-term wearing with a small volume. Also, it could detect user’s motion status w...

In this study, we propose a quality control program for MR-guided focused ultrasound (FUS) ablation treatment to assess FUS beam positioning accuracy, FUS power delivery accuracy, MR imaging quality, and FUS ablation system safety. A total of 353 sonication points in Lucite cards were measured, the average placement errors were -0.06 mm in the SI direction and -0.04 mm in the LR direction. Temp...