نتایج جستجو برای: cost and reliability optimization drilling

تعداد نتایج: 16940881  

Journal: :international journal of smart electrical engineering 2015
akbar maleki fathollah pourfayaz

the power supply of remote sites and applications at minimal cost and with low emissions is an important issue when discussing future energy concepts. this paper presents modeling and optimization of a photovoltaic (pv)/wind/diesel system with batteries storage for electrification to an off-grid remote area located in rafsanjan, iran. for this location, different hybrid systems are studied and ...

2008
Patrik Hilber

Akademisk avhandling som med tillstånd av Kungl Tekniska Högskolan framlägges till offentlig granskning för avläggande av teknologie doktorsexamen, fredagen den 18:e april, Abstract Maximum asset performance is one of the major goals for electric power distribution system operators (DSOs). To reach this goal minimal life cycle cost and maintenance optimization become crucial while meeting deman...

2007
B. V. BABU

Optimization Optimization refers to finding one or more feasible solutions, which correspond to extreme values of one or more objectives. The need for finding such optimal solutions in a problem comes mostly from the extreme purpose of either designing a solution for minimum possible cost of fabrication, or for maximum possible reliability, or others. Because of such extreme properties of optim...

2013
Harish Garg S. P. Sharma

In any manufacturing system, the cost is considered to be the most significant factor and the reliability of any industrial system is also an increasingly important issue. On the other hand the available information about the constituent components of the system is most of the time imprecise, incomplete, vague and conflicting and the management decisions are based on experience. So it is very d...

2011
František Krepelka Jozef Futó Lucia Ivaničová

A noise effect arising in the rock cutting process is gaining a large attention as to the identification and optimization of the cutting process. The sense experience acquired during the experiments in the process of rotary rock drilling related to the determination of rock type or to the optimal drilling regime determination is formed due to sense perception, mainly hearing, and its further ev...

راشکی, محسن, صفائیان حمزه کلائی, ناصر, میری, محمود,

Weighted Simulation-based Design Method (WSDM) is recently developed as an efficient method for Reliability- Based Design Optimization (RBDO). Despite simplicity, this method degrades effectiveness to obtain accurate optimum design for high dimension RBDO. Besides, its application range is restricted to RBDOs including only random design variables. In the present study, local search strategy...

Journal: :IJAEC 2011
Alice Yalaoui Farah Belmecheri Eric Châtelet Farouk Yalaoui

Reliability optimization is an important step in industrial systems design. In order to develop a reliable system, designers may introduce different redundant technologies with the same functionality in parallel. In this paper, each technology is assumed to be composed of series components. The obtained configuration belongs to the series-parallel systems. The presented tool is for the design o...

Journal: :Analytical and bioanalytical chemistry 2006
Shingo Iba Yusaku Kato Tsuyoshi Sekitani Hiroshi Kawaguchi Takayasu Sakurai Takao Someya

Inverter circuits have been made by connecting two high-quality pentacene field-effect transistors. A uniform and pinhole-free 900 nm thick polyimide gate-insulating layer was formed on a flexible polyimide film with gold gate electrodes and partially removed by using a CO2 laser drilling machine to make via holes and contact holes. Subsequent evaporation of the gold layer results in good elect...

Journal: :Intelligent Information Management 2009
G. S. Mahapatra

In this paper, we have considered a series-parallel system to find out optimum system reliability with an additional entropy objective function. Maximum system reliability of series-parallel system is depending on proper allocation of redundancy component in different stage. The goal of entropy based reliability redundancy allocation problem is to find optimal number of redundancy component in ...

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