نتایج جستجو برای: step neural network dmsnn

تعداد نتایج: 1073650  

Journal: :مهندسی بیوسیستم ایران 0
نیما تیموری دانشجوی دکتری گروه مهندسی ماشین‏های کشاورزی، دانشگاه تهران محمود امید استاد گروه مهندسی ماشین‏های کشاورزی، دانشگاه تهران کاوه ملازاده استادیار گروه مهندسی بیوسیستم، دانشگاه کردستان علی رجبی پور استاد گروه مهندسی ماشین‏های کشاورزی، دانشگاه تهران

the quality evaluation of agricultural products is one of the key factors in promoting their quality. in this study, a method based on combined image processing technique and artificial neural network was presented. separation of touching almonds under different positions is a very important step in design of grading devices. in this study, an image processing algorithm based on extracting crit...

2006
David Gianazza Kévin Guittet

This paper presents an original method to evaluate air traffic complexity metrics. Several complexity indicators, found in the litterature, were implemented and computed, using recorded radar data as input. A principal component analysis (PCA) provides some results on the correlations between these indicators. Neural networks are then used to find a relationship between complexity indicators an...

Air pollution is one of the most problems that people are facing today in metropolitan areas. Suspended particulates, carbon monoxide, sulfur dioxide, ozone and nitrogen dioxide are the five major pollutants of air that pose many problems to human health. The goal of this study is to propose a spatial approach for estimation and analyzing the spatial and temporal distribution of ozone based on ...

Journal: :journal of optimization in industrial engineering 2013
mohammad saleh meiabadi abbas vafaei fatemeh sharifi

injection molding is one of the most important and common plastic formation methods. combination of modeling tools and optimization algorithms can be used in order to determine optimum process conditions for the injection molding of a special part. because of the complication of the injection molding process and multiplicity of parameters and their interactive effects on one another, analytical...

Journal: :محیط شناسی 0
حمید زارع ابیانه دانشگاه بوعلی سینا ، استادیار گروه مهندسی آب دانشکدة کشاورزی مریم بیات ورکشی دانشگاه بوعلی سینا ، دانش آموخته کارشناسی ارشد آبیاری و زهکشی دانشکدة کشاورزی سمیرا اخوان دانشگاه بوعلی سینا، استادیار گروه مهندسی آب دانشکدة کشاورزی محمد محمدی دانشگاه بوعلی سینا، کارشناس آبیاری

information on nitrate in groundwater resources requires periodic measurements are accurate. despite the measure in some areas due to sensitive social and health community are not reported. therefore, be informed of the status of each area of water quality, modeling is essential. the purpose of this study was the application of artificial neural network method for estimating nitrate and compare...

محسن نیا, ملیکه , محسن نیا, نرجس , مقیمان, محمد,

در این مقاله به منظور بررسی ارتباط بین افت فشار سیکلون جداسازی و پارامترهای هندسی سیکلون غبارگیری، سه نوع شبکه عصبی مصنوعی انتشار بازگشتی[1]، شبکه عصبی تابع پایه شعاعی[2] و شبکه عصبی رگرسیون تعمیم یافته[3] به کارگرفته شده­اند. پس از آموزش آن­ها با داده­های تجربی، پارامترهای بهینه عملکردی هر کدام شبکه‌ها، با روش جستجوی چند مرحله‌ای[4] به دست آمده‌اند. شبکه­ها بر اساس میزان ضریب همبستگی[5]، خطای ...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2014
a. fakharian r. mosaferin m. b. menhaj

in this paper, a recurrent fuzzy-neural network (rfnn) controller with neural network identifier in direct control model is designed to control the speed and exhaust temperature of the gas turbine in a combined cycle power plant. since the turbine operation in combined cycle unit is considered, speed and exhaust temperature of the gas turbine should be simultaneously controlled by fuel command ...

Journal: :international journal of data envelopment analysis 2014
s. dolatabadi h. rezai zhiani

the paper deals with data envelopment analysis (dea) and artificial neural network (ann). we believe that solving for the dea efficiency measure, simultaneously with neural network model, provides a promising rich approach to optimal solution. in this paper, a new neural network model is used to estimate the inefficiency of dmus in large datasets.

ABSTRACT: In this study, adaptive neuro-fuzzy inference system, and feed forward neural network as two artificial intelligence-based models along with conventional multiple linear regression model were used to predict the multi-station modelling of dissolve oxygen concentration at the downstream of Mathura City in India. The data used are dissolved oxygen, pH, biological oxygen demand and water...

1999
D. Nagesh Kumar T. Sathish

Forecasting a hydrologic time series has been one of the most complicated tasks owing to the wide range of data, the uncertainties in the parameters influencing the time series and also due to the non availability of adequate data. Recently Artificial Neural Networks (ANN) have become quite popular in time series forecasting in various fields. This paper demonstrates the use of ANN to forecast ...

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