نتایج جستجو برای: transmission loss

تعداد نتایج: 677115  

2010
Kyung-Il Min Young-Hyun Moon

This paper presents a new algorithm to determine accurate bus-wise transmission loss allocation utilizing path-integrals dictated by the transaction strategy. For any transaction strategy, the total sum of the allocated transmission losses of all buses is equal to the actual loss given by the AC powerflow calculation considering the distributed slack. In this paper, the bus-wise allocation of t...

2015
Yubo Ren Lizhong Xu Yongli Liang

In view of the characteristics of electromagnetic harmonic movable teeth transmission system, the heat loss has been analyzed in this paper based on basic assumptions. At the same time, the calculation methods of electromagnetic loss and mechanical loss in system have been also discussed. Moreover, the influence of changes of system parameters on electromagnetic loss and mechanical loss has bee...

2013
Baseem Khan Ganga Agnihotri Anuprita Mishra Gaurav Gupta

Restructuring of Electricity supply industry introduced many concerns such as transmission pricing, transmission loss allocation and congestion management. Several methodologies and algorithms were proposed for addressing these issues. In this paper, a power flow tracing based method is proposed, which involves Matrices methodology for the transmission usage and loss allocation for generators a...

Farrokh Hojjat Kashani Habibollah Zolfkhani Jalil Rashed Mohassel

Modern microwave and millimeter wave phased array antennas are attractive because of their ability to steer wave beams in space without physically moving the antenna element. A typical phased array antenna may have several thousand elements fed by a phase shifter for every antenna, which can steer the resulting array beam to different directions. Their low loss, low cost and lightweight phase s...

2005
R. Kinney P. Crucitti V. Latora

The North American power grid is one of the most complex technological networks, and its interconnectivity allows both for long-distance power transmission and for the propagation of disturbances. We model the power grid using its actual topology and plausible assumptions about the load and overload of transmission substations. Our results indicate that the loss of a single substation can resul...

2014
Dong-Hyun Ha Ki-ro Kim Hyoung-Kyu Song

Recently, cooperative system is an interesting issue in communication systems. Single mobile antenna can have transmission diversity gain by the cooperative system as multiple input multiple output (MIMO) system. However, the most of the cooperative systems have a problem about the transmission rate loss. In this paper, hierarchical modulation is proposed in order to solve the transmission rate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده فنی و مهندسی 1391

. فیلتر پیشنهادی دارای فرکانس قطع db 3- در 2.38 ghz و باند‎گذر این فیلتر، از باند عبور به باند قطع که معمولاً از فرکانس قطع db 3- تا فرکانسی که در آن میزان تضعیف به db 20- می‎رسد برابر با ghz 0.45است. باند قطع این فیلتر با میزان تضعیف db 21- از ghz 2.5 تا23.5ghz است. insertion loss در باند عبور کمتر از db 0.1 و return loss در باند عبور بهتر از db 16. 9- و در باند قطع نزدیک به 0 db می‎باشد که نشا...

2000
Eitan Altman Konstantin Avrachenkov Chadi Barakat

In this paper we analyze the performance of a TCP-like ow control mechanism in a lossy environment. The transmission rate in the control scheme that we consider has a linear growth rate; whenever a loss occurs, the transmission rate is halved. This approximates the performance of several versions of TCP that divide their congestion window by two when a loss is detected. We propose a mathematica...

2000
Eitan Altman Konstantin Avrachenkov Chadi Barakat

In this paper we analyze the performance of a TCP-like flow control mechanism in a lossy environment. The transmission rate in the control scheme that we consider has a linear growth rate; whenever a loss occurs, the transmission rate is halved. This approximates the performance of several versions of TCP that divide their congestion window by two when a loss is detected. We propose a mathemati...

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