نتایج جستجو برای: algorithms

تعداد نتایج: 327528  

Journal: :int. journal of mining & geo-engineering 2014
saeed mojeddifar gholamreza kamali hojjatolah ranjbar babak salehipour bavarsad

this paper presents a comparative study between three versions of adaptive neuro-fuzzy inference system (anfis) algorithms and a pseudo-forward equation (pfe) to characterize the north sea reservoir (f3 block) based on seismic data. according to the statistical studies, four attributes (energy, envelope, spectral decomposition and similarity) are known to be useful as fundamental attributes in ...

Journal: :iranian journal of science and technology (sciences) 2010
b. bidabad

the most current pursuit algorithms for moving targets which are presented so far in the literatureare pure pursuit and pure rendezvous navigations. recently, one of the present authors has introduced ageometric model for the pure pursuit navigation algorithm. here, in this paper, we study a new algorithm forthe pursuit navigation problem which is a combination of both of the above algorithms. ...

Journal: :مهندسی صنایع 0
سحر فلاح صنمی کارشناس ارشد رشته مدیریت صنعتی، دانشکدة اقتصاد و مدیریت، دانشگاه سمنان رضا رمضانیان استادیار رشتۀ مهندسی صنایع، دانشکدة مهندسی صنایع، دانشگاه صنعتی خواجه نصیرالدین طوسی محسن شفیعی نیک آبادی استادیار رشتۀ مدیریت صنعتی، دانشکدة اقتصاد و مدیریت، دانشگاه سمنان

the aim of this paper is to study a multi-product, multi-period production systems in a hybrid flow shop so that lot-sizing and scheduling will be detemined simultaneously. a new mixed-integer programming model is proposed to formulate the studied problem. the objective function in this investigation includes the total cost of production, inventory and external supply. in the case of not satisf...

and E. Afjei, F. Razavi, H.A. Abyaneh, R. Mohammadi H. Torkaman,

All algorithms for impedance calculation use an analog-to-digital converter. The high accuracy of the impedance seen by a distance relay is an important factor in the correct isolation of the faulty part of power systems. To achieve this, a novel&#10technique based on third order interpolation is used in this paper. According to this technique, the times and the values of the obtained samples a...

and S. D. Katebi, B. Daei, M. Eftekhari,

A novel version of Ant Colony Optimization (ACO) algorithms for solving continuous space problems is presented in this paper. The basic structure and concepts of the originally reported ACO are preserved and adaptation of the algorithm to the case of continuous space is implemented within the general framework. The stigmergic communication is simulated through considering certain direction vect...

 In this paper, utilization of clustering algorithms for data fusion in decision level is proposed. The results of automatic isolated word recognition, which are derived from speech spectrograph and Linear Predictive Coding (LPC) analysis, are combined with each other by using fuzzy clustering algorithms, especially fuzzy k-means and fuzzy vector quantization. Experimental results show that the...

By summarizing Khachiyan's algorithm and Karmarkar's algorithm forlinear program (LP) a unified methodology for the design of polynomial-time algorithms for LP is presented in this paper. A key concept is the so-called extended binary search (EBS) algorithm introduced by the author. It is used as a unified model to analyze the complexities of the existing modem LP algorithms and possibly, help ...

Ahmadreza Sebzari Fathollah Bouzarjomehri Kaveh Shirani Tak Abi Malihe Rezaie Yazdi Maryam Rezaie Yazdi Narges Kheirollahi Payam Izadpanahi

Introduction: The functionality and quality of any treatment planning system (TPS) strongly depends on the type of Algorithm which is used by it. Obviously, the role of dose distribution algorithms in calculation of prescribed dose inside the tumor in modern radiotherapy techniques has more important than past to achieve the best clinical outcomes, especially in tumors which ar...

Journal: :آب و توسعه پایدار 0
سید مصطفی طباطبایی حسین خزیمه نژاد ابوالفضل اکبرپور

according to the current state of water resources and the increasing demand for water, the supply of future needs will be faced with serious constraints. on the one hand, the failure to supply sometimes causes social and political problems. on the other hand, improper exploitation of water resources will lead to irreparable damages. therefore, the use of optimization models for the planning of ...

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