نتایج جستجو برای: congestion index

تعداد نتایج: 418657  

Journal: :European Heart Journal 2022

Abstract Background Renal and hepatic dysfunction complicate the treatment course of patients with heart failure negatively affect outcomes. Because right atrium functions as a reservoir between ventricle venous circulation, reduced atrial compliance may enhance congestion, thereby promoting worsening renal function congestion. Purpose To evaluate association RA strain (RS) end-organ (renal con...

Congestion and overloading for lines are the main problems in the exploitation of power grids. The consequences of these problems in deregulated systems can be mentioned as sudden jumps in prices in some parts of the power system, lead to an increase in market power and reduction of competition in it. FACTS devices are efficient, powerful and economical tools in controlling power flows through ...

2012
Rekha Chakravarthi

In Wireless Sensor Networks (WSN’s), congestion plays an important role in degrading the performance of the network. Under idle condition, the network load is very low whereas when an event is detected the network load becomes high which leads to congestion. Due to congestion the overall performance of the network degrades. Hence it is necessary to detect and control congestion. In this paper a...

2012
Rekha Chakravarthi C. Gomathy

Congestion plays a vital role in degrading the performance of the network. Under idle condition, network traffic is less whereas when an event is detected, the network traffic becomes high thus leading to congestion in the network. To ensure the reliability of the network an efficient protocol is proposed to detect and control congestion. Though there are various sources for congestion, the sig...

Journal: :Journal of the American College of Cardiology 2009
Wilfried Mullens Zuheir Abrahams Gary S Francis George Sokos David O Taylor Randall C Starling James B Young W H Wilson Tang

OBJECTIVES To determine whether venous congestion, rather than impairment of cardiac output, is primarily associated with the development of worsening renal function (WRF) in patients with advanced decompensated heart failure (ADHF). BACKGROUND Reduced cardiac output is traditionally believed to be the main determinant of WRF in patients with ADHF. METHODS A total of 145 consecutive patient...

2014
Pradyumna Kumar Sahoo Prasanta Kumar Satpathy

Abstract—This paper aims at finding a suitable neural network for monitoring congestion level in electrical power systems. In this paper, the input data has been framed properly to meet the target objective through supervised learning mechanism by defining normal and abnormal operating conditions for the system under study. The congestion level, expressed as line congestion index (LCI), is eval...

Journal: :JCS 2014
S. Thangalakshmi P. Valsalal

The role of Independent System Operator (ISO) in the restructured power industry includes system control, capacity planning, transmission tariff and congestion management; the challenging task being minimizing the congestion. One of the popular techniques used to alleviate congestion is using Flexible AC Transmission Systems (FACTS) devices. The power system generally operates near its rated ca...

2013
Ibrahim K. Tabash M. Salim Beg Nesar Ahmad

Transmission Control Protocol (TCP) is designed for wired networks and the sender assumes that packet loss is an indicator of network congestion. However, this assumption may not apply to Mobile Ad hoc Networks (MANETs). Numerous transmission control protocols have been proposed in the literature to address the problem of congestion in MANETs. Their performance is highly dependent on networks c...

2012
Chenthur Pandian

Problem statement: In most of the existing works either detection of congestion or scheme for congestion control in wireless sensor networks are presented. A very few works have been done, taken in to account of both congestion detection and congestion control. In most of the congestion detection works they have not achieved accuracy in detecting congestion and have resulted with high latency t...

2002
Guang Yang Ren Wang M. Y. Sanadidi Mario Gerla

Both ground radio and satellite links are error-prone. In the Next Generation Internet (NGI) link capacities and propagation delays will grow, leading to very large TCP pipes. It is well known that in such long delay and error-prone environments the performance of current TCP variants degrades severely. We have previously developed an extension of TCP Westwood (TCPW) called TCPW with Bulk Repea...

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