نتایج جستجو برای: side weirdischarge coefficientai model ann

تعداد نتایج: 2298452  

Journal: :اقتصاد و توسعه کشاورزی 0
رضا مقدسی میترا ژاله رجبی

abstract autoregressive integrated moving average (arima) has been one of the widely used linear models in time series forecasting during the past three decades. recent studies revealed the superiority of artificial neural network (ann) over traditional linear models in forecasting. but neither arima nor anns can be adequate in modeling and forecasting time series since the first model cannot d...

Journal: :desert 2015
mohammad tahmoures ali reza moghadamnia mohsen naghiloo

modeling of stream flow–suspended sediment relationship is one of the most studied topics in hydrology due to itsessential application to water resources management. recently, artificial intelligence has gained much popularity owing toits application in calibrating the nonlinear relationships inherent in the stream flow–suspended sediment relationship. thisstudy made us of adaptive neuro-fuzzy ...

Journal: :journal of agricultural science and technology 2012
l. momenzadeh a. zomorodian d. mowla

drying characteristics of green pea (pisum satium) with an initial moisture content of 76% (db) was studied in a fluidized bed dryer assisted by microwave heating. four drying air temperatures (30, 40, 50 and 60ºc) and five microwave powers (180, 360, 540, 720 and 900w) were adopted. several experiments were conducted to obtain data for sample moisture content versus drying time. the results sh...

2011
Guohai Liu Shuang Yu Congli Mei Yuhan Ding

Some crucial process variables in fermentation process could not be measured directly. Soft sensor technology provided an effective way to solve the problem. There has been considerable interest in modeling a soft sensor by using artificial neural network (ANN) in bioprocess. To generate a more efficient soft sensor model, we proposed a novel soft sensor model based on artificial neural network...

Journal: :the iranian journal of pharmaceutical research 0
rezvan zendehdel student research committee, shahid beheshti university of medical sciences, tehran, iran. department of toxicology and pharmacology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. ali masoudi-nejad laboratory of systems biology and bioinformatics (lbb), institute of biochemistry and biophysics and coe in biomathematics, university of tehran, tehran, iran farshad h. shirazi pharmaceutical research sciences center, shahid beheshti university of medical sciences, tehran, iran. department of toxicology and pharmacology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

drug resistance enables cancer cells to break away from cytotoxic effect of anticancer drugs. identification of resistant phenotype is very important because it can lead to effective treatment plan. there is an interest in developing classifying models of resistance phenotype based on the multivariate data. we have investigated a vibrational spectroscopic approach in order to characterize a sen...

Journal: :iranian journal of basic medical sciences 0
ali tayarani department of electrical engineering, ferdosi university of mashad, mashad, iran ali baratian school of pharmacy, mashhad university of medical sciences, mashad, iran mohammad bagher naghibi sistani department of electrical engineering, ferdosi university of mashad, mashad, iran mohammad reza saberi school of pharmacy, mashhad university of medical sciences, mashad, iran zeinab tehranizadeh school of pharmacy, mashhad university of medical sciences, mashad, iran

objective(s): a fast and reliable evaluation of the binding energy from a single conformation of a molecular complex is an important practical task. artificial neural networks (anns) are strong tools for predicting nonlinear functions which are used in this paper to predict binding energy. we proposed a structure that obtains binding energy using physicochemical molecular descriptions of the se...

Journal: :Computers & Geosciences 2010
A. Bassam E. Santoyo J. A. Andaverde J. A. Hernández O. M. Espinoza-Ojeda

An artificial neural network (ANN) approach was used to develop a new predictive model for the calculation of static formation temperature (SFT) in geothermal wells. A three-layer ANN architecture was successfully trained using a geothermal borehole database, which contains ‘‘statistically normalised’’ SFT estimates. These estimates were inferred from seven analytical methods commonly used in g...

Journal: :آب و توسعه پایدار 0
مرضیه رسولی علی حقی زاده حسین زینی وند علی رضا ایلدرمی

land-use change affects a number natural processes such as soil erosion, sedimentation, flooding and destruction of soil physical and chemical properties. this change of ecosystem causes the degradation of soil quality which eventually leads to a severe decrease in soil fertility. therefore, various aspects of land-use change should be taken into account in national major decision makings. this...

Journal: :Brodogradnja 2022

Trimaran hull forms have been popular recently in both commercial and military usage due to reduction resistance at high speeds, better stability, greater deck area compared conventional monohull vessels. Determination of the location side hulls is most critical get higher hydrodynamic performance. Therefore, many studies literature are related defining for trimaran Most carried out experimenta...

2015
Sadra Azizi Hajir Karimi

In this study, a three–layer \ artificial neural network (ANN) model was developed to predict the pressure gradient in horizontal liquid–liquid separated flow. A total of 455 data points were collected from 13 data sources to develop the ANN model. Superficial velocities, viscosity ratio and density ratio of oil to water, and roughness and inner diameter of pipe were used as input parameters of...

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