نتایج جستجو برای: well placement optimization

تعداد نتایج: 1854969  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده برق و الکترونیک 1390

there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...

Journal: :iranian journal of science and technology (sciences) 2014
m. r. rasaei

intelligent wells provide the ability for monitoring and control of downhole environment of the wells. downhole monitoring is achieved through sensors while control is realized with downhole valves. recovery from intelligent wells can be improved by proper selection of candidate wells/fields and optimizing the number, location and performance of the installed interval control valves. design cri...

2014
Kittipob Kondee Chutima Prommak

In this paper, we propose an optimization technique that can be used to optimize the placements of reference nodes and improve the location determination performance for the multi-floor building. The proposed technique is based on Simulated Annealing algorithm (SA) and is called MSMR-M. The performance study in this work is based on simulation. We compare other node-placement techniques found i...

2006
Ching-Mai Ko Yu-Jung Huang Shen-Li Fu MeiHui Guo

Placement of multiple dies on an MCM substrate is a difficult combinatorial task in which multiple criteria need to be considered simultaneously to obtain a true multi-objective optimization. Our design methodologies consider multi-objective component placement based on thermal reliability, routing length and chip area criteria for multi-chip module. The purpose of the multi-objective optimizat...

2012
Myung Chul Kim David T. Blaauw Pinaki Mazumder

Multiobjective Placement Optimization for High-performance Nanoscale Integrated Circuits

Journal: :journal of operation and automation in power engineering 2014
k. mazlumi m. mohammad gholiha1 r. abbasi f. mazlumi

in this paper, a new method based on branch placement for the optimal positioning of phasor measurement units (pmus) in power systems is proposed. in this method, the pmus are in type of single-channel and are installed at the beginning of the branches. therefore, they are able to measure the bus voltages. also, the installation of the pmus on the branches increases the security of observabilit...

2013
M. Khalili R. Kharrat K. Salahshoor

One of the mostly used enhanced oil recovery methods is the injection of water or gas under pressure to maintain or reverse the declining pressure in a reservoir. Several parameters should be optimized in a fluid injection process. The usual optimizing methods evaluate several scenarios to find the best solution. Since it is required to run the reservoir simulator hundreds of times, the process...

Journal: :Computer Communications 2008
Liansheng Tan Li Jin Yi Pan

The primary focus of this paper is the design of efficient algorithm for the calculation of solution to the placement of proxies for performance optimization in hierarchical reliable multicast (HRM). Proxy is introduced to localize feedback and retransmission, and therefore significantly depress traffic redundancy and reduce latency. Placement of proxies is a key issue in HRM. This paper theore...

2013
Mohamed A. Shalaby Mohamed Kashkoush

Two-Dimensional Irregular Strip Packing Problem is a classical cutting/packing problem. The problem is to assign, a set of 2-D irregular-shaped items to a rectangular sheet. The width of the sheet is fixed, while its length is extendable and has to be minimized. A sequence-based approach is developed and tested. The approach involves two phases; optimization phase and placement phase. The optim...

Journal: :EURASIP J. Wireless Comm. and Networking 2014
Liang Han Jiasong Mu Wei Wang Baoju Zhang

In this paper, we investigate the relay placement and power allocation for decode-and-forward (DF) cooperative relaying over correlated lognormal shadowed Rayleigh fading channels. Assuming that maximum-ratio combining is performed at the destination, we first derive an upper bound of symbol error rate (SER) withM-phase-shift keying (PSK) modulation. Then, three optimization problems are formul...

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