under the smart grid environments, demand response resources (drrs) as power system resources can effectively participate in and improve performance of electric systems. congestion management is one of the technical challenges in which drrs can play a significant role. previously, congestion management is applied without considering the power system uncertainties. therefore, a stochastic conges...

nutcracker syndrome (ncs) is a rare pathology, caused by compression of the left renal vein (lrv) between the abdominal aorta (aa) and the superior mesenteric artery (sma), due to reduction of the angle between aa and sma. this leads to lrv varices, left gonadal vein varices and therefore, the pelvic congestion syndrome. for this reason, coexistence of ncs and pelvic congestion syndrome has bee...

this paper proposes an optimal transmission expansion planning (tep) which is based on determining share of each line in merchandizing surplus (ms) of system, determining by independent system operator (iso). the more share of a line in ms of system denotes the priority of a line for expansion. the procedure of determining ms of each line in a power system is based on determining the ms share o...

aim : assessment of short term changes in portal blood flow and long term changes in liver functions in cirrhotic patients who chose to fast during the month of ramadan in summer. background : during ramadan, healthy muslims obligated to fast from predawn to sunset. patients and methods : forty cirrhotic patients intended to fast during the month of ramadan in the year 2014, were examined by co...

In this paper, we propose a rate control algorithm for intermittently connected networks (ICNs), which represent a type of delay/disruption-tolerant network (DTN). ICNs have quite different characteristics from traditional TCP/IP networks that lead to problems that do not occur in legacy networks, such as network partitioning, long and varying delays, high loss probability, and asymmetric data ...

Increasing health care costs and long waiting times for public care are growing sources of concern for governments in industrialized countries. In this paper, we investigate the impact of waiting times on the demand for care, ask whether allowing congestion to increase in order to contain ever growing health care costs is socially desirable, and predict the expected outcome of policies aiming a...

The transmission control protocol (TCP) is a transport protocol used in the Internet. In Ott (2005), a more general class of candidate transport protocols called ‘protocols in the TCP paradigm’ was introduced. The long-term objective of studying this class is to find protocols with promising performance characteristics. In this paper we study Markov chain models derived from protocols in the TC...

active queue management (aqm) plays an important role in the internet congestion control. it tries to enhance congestion control, and to achieve tradeoff between bottleneck utilization and delay. random early detection (red) is the most popular active queue management algorithm that has been implemented in the in internet routers and is trying to supply low delay and low packet loss. red algori...

in the deregulated power systems, transmission congestion is one of the significant and main problems of the electrical networks which can cause incremental cost in the energy. this problem has resulted to new challenging issues in different parts of power systems which there was not in the traditional systems or at least had very little importance. transmission congestion happens when the maxi...