نتایج جستجو برای: mlpnn

تعداد نتایج: 100  

Journal: :Mathematics 2021

The present study aims to elucidate the main variables that increase level of stress at beginning military conscription service using an artificial neural network (ANN)-based prediction model. Random sample data were obtained from one battalion Lithuanian Armed Forces, and a survey was conducted generate for training testing ANN models. Using nonlinearity in research, numerous structures constr...

Journal: :Mathematics 2022

Applications of artificial intelligence (AI) models have been massively explored for various engineering and sciences domains over the past two decades. Their capacity in modeling complex problems confirmed motivated researchers to explore their merit different disciplines. The use AI-models (probabilistic neural network multilayer perceptron network) estimation water quality indicators (namely...

A. Sharifi F. Pourshakouri J. Amini

This research develops an allometric model for estimation of biomass based on the height and DBH of trees in the Hyrcanian forests of Iran. An accurate allometric model reduces the uncertainty of allometric equation in biomass estimation using radar images. In this study, 317 trees were selected randomly from the 4 different dominant tree species for the development of an allometric model cover...

Journal: :Water 2022

Water temperature (WT) is a critical control for various physical and biochemical processes in riverine systems. Although the prediction of river water has been subject extensive research, very few studies have examined relative importance elements affecting WT how to accurately estimate under effects cascaded dams. In this study, series potential influencing variables, such as air temperature,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده مهندسی 1393

در این پژوهش سه مدل نوین به کمک الگوریتم¬های هوش مصنوعی anfis و شبکه¬های پرسپترون چند لایه جهت (mlpnn)جهت پیش¬بینی و تخمین شار تراوش¬پذیری co2 و انتخاب¬پذیری co2/ch4 ارائه گردیده است. این سه مدل یعنی anfis، cfnn و ffnn رفتار غلظت پلیمر(% pebax)، درصد آغازگر (precursor %)، غلظت¬های هر دو آغاز گر البته به صورت نسبتی؛ یعنی و دمای واکنش هیدرولیز در مقابل دو خروجی مورد نظر یعنی شار تراوش¬پذیری co2 و...

Journal: :Frontiers in Environmental Science 2022

The settlement growth is potentially increased by the rural-to-urban perspective change due to new era of aerotropolis in Kulon Progo. Land-use planning evaluation required, especially settlement, which has a significant impact on environment. However, land-use studies are currently focused conforming analysis official (OLUP) toward existing or predicted land use partially combination with perf...

ژورنال: :مهندسی مکانیک مدرس 0
مرتضی زادکرمی دانشگاه صنعت نفت مهدی شهبازیان دانشگاه صنعت نفت کریم سلحشور دانشگاه صنعت نفت

نشتی های خط لوله نفت اگر مورد توجه واقع نشود می تواند منجر به خسارت های بزرگی گردد. اولین گام برای مقابله موثر با این نشتی ها، تشخیص محل وقوع آن ها است. در مقاله ی حاضر یک روش جدید آشکارسازی و جداسازی عیوب (fdi) مبتنی بر داده پیشنهاد می شود که نه تنها قادر است وقوع عیب نشتی و محل آن را آشکار سازد بلکه می تواند وخامت (اندازه ی) نشتی را نیز با دقت زیاد تخمین بزند. در مطالعه ی حاضر، خط لوله ی گلخا...

Journal: :Applied mathematics 2021

This research work investigates the use of Artificial Neural Network (ANN) based on models for solving first and second order linear constant coefficient ordinary differential equations with initial conditions. In particular, we employ a feed-forward Multilayer Perceptron (MLPNN), but bypass standard back-propagation algorithm updating intrinsic weights. A trial solution equation is written as ...

Journal: :Applied Energy 2023

Hydrogen is believed as a promising energy carrier that contributes to deep decarbonization, especially for the sectors hard be directly electrified. A grid-connected wind/hydrogen system typical configuration hydrogen production. For such system, critical barrier lies in poor cost-competitiveness of produced hydrogen. Researchers have found flexible operation possible thanks excellent dynamic ...

Journal: :Energy Science & Engineering 2022

Artificial neural networks (ANNs) can understand the behavior of a given system from historical measurements its associated variables. Adjusting weight and bias ANN model using an optimization algorithm is known as training process. The reliability directly related to success Therefore, this study investigates effect algorithms on prediction accuracy multilayer perceptron (MLPNNs). complex gas ...

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