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62

تعداد نتایج:

62

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The Impact of the OPEC Summit on Iran's Oil Revenue (SVAR-Quantile Hybrid Model Approach)

کلیدواژه: OPEC Statement,Crude Oil Price,Structural Vector Auto Regression Model,Quantitative Method,Iranian Oil Export Revenue

نویسندگان: JAMALI LEILA, MOUSAVI S.N., Aminifard A.

ناشر: مطالعات اقتصادی کاربردی ایران (مطالعات اقتصادی کاربردی) - JOURNAL OF APPLIED ECONOMICS STUDIES IN IRAN

Given the economic dependence of OPEC member countries, including Iran, on crude oil prices and export earnings, and considering the fact that one of the factors affecting crude oil prices is OPEC decisions, in this study, we investigate the impact of OPEC Summit Statements (increase, decrease and s... ادامه

سال:2021

نوع سند: Article

2 دانلود

12 بازدید

مشاهده/دانلود

Hybrid Artificial Intelligence Model Development for Roller-compacted Concrete Compressive Strength Estimation

کلیدواژه: Artificial Neural Network,Artificial Bee Colony Algorithm,Roller-Compacted Concrete,Compressive strength

نویسندگان: Ranjbar A., Barahmand N., Ghanbari A.

ناشر: - International Journal of Engineering

This study implemented the artificial bee colony (ABC) metaheuristic algorithm to optimize the Artificial Neural Network (ANN) values for improving the accuracy of model and evaluate the developed model. Compressive strength of RCC was investigated using mix design materials in three forms, namely v... ادامه

سال:2020

نوع سند: Article

3 دانلود

19 بازدید

مشاهده/دانلود

Model Predictive Control of a Fault-Tolerant-Hybrid Excitation Axial Field-Flux-Switching Permanent Magnet Motor

کلیدواژه: Hybrid Excited Axial Field Flux-Switching Motor,Model Predictive Torque Control,Direct Torque Control Open Circuit Fault,Electric Vehicle

نویسندگان: jamali arand s., Rahmani Fard J.

ناشر: - AUT Journal of Electrical Engineering

To improve the performance of the fault-tolerant-hybrid excitation axial field fluxswitching (FT-HEAFFS) motor and attain the minimum copper loss, a fault-tolerant control method based on the model predictive control algorithm is proposed. Considering a 6 stator slots/13-rotor poles FT-HEAFFS machin... ادامه

سال:2021

نوع سند: Article

4 دانلود

13 بازدید

مشاهده/دانلود

Estimation of Reference Evapotranspiration Using Artificial Neural Network Models and the Hybrid Wavelet Neural Network

کلیدواژه: Water Requirement,Davbechies Wave-let,Temperature,Statistical Indices,Shahrekord

نویسندگان: GANJI KHORRAMDEL N., Hoseini S. M. R.

ناشر: علوم آب و خاک (علوم و فنون کشاورزی و منابع طبیعی) - Journal of Water and Soil Science

Estimation of evapotranspiration is essential for planning, designing and managing irrigation and drainage schemes, as well as water resources management. In this research, artificial neural networks, neural network wavelet model, multivariate regression and Hargreaves' empirical method were used to... ادامه

سال:2019

نوع سند: Article

0 دانلود

15 بازدید

مشاهده/دانلود

Simulation of Discharge Coefficient of Sharp-Crested Circular Weirs Using Hybrid ANFIS-Firefly Model

کلیدواژه: Circular weir,Discharge coefficient,Modeling,ANFIS,ANFIS-FA

نویسندگان: ALIZADEH A., YAGHOUBI B., SHABANLOU S.

ناشر: علوم آب و خاک (علوم و فنون کشاورزی و منابع طبیعی) - Journal of Water and Soil Science

In this study, the discharge coefficient of sharp-crested weirs located on circular channels was modeled using the ANFIS and ANFIS-Firefly (ANFIS-FA) algorithm. Also, the Monte Carlo simulations (MCs) were used to enhance the compatibilities of the soft computing models. However, the k-fold cross va... ادامه

سال:2020

نوع سند: Article

0 دانلود

8 بازدید

مشاهده/دانلود

A Hybrid Fuzzy MCDM Approach to Determine an Optimal Block Size in Open-Pit Mine Modeling: a Case Study

کلیدواژه: Block size determination,Open-pit mines,Fuzzy Delphi AHP,Fuzzy MOORA

نویسندگان: ABDOLLAHI SHARIF J., JAFARPOUR A., YOUSEFI S.

ناشر: معدن و محیط زیست - JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES)

The computer-based 3D modeling of ore bodies is one of the most important steps in the resource estimation, grade determination, and production scheduling of open-pit mines. In the modeling phase, the volume of the orebody model is required to be filled by the blocks and sub-blocks. The determinatio... ادامه

سال:2020

نوع سند: Article

2 دانلود

10 بازدید

مشاهده/دانلود

Hybrid Model of Zakah, Waqf, Qard-Hassan & Islamic Finance for a Just and Sustainable Microfinance

کلیدواژه:

نویسندگان: Dr. Magda Ismail A. Mohsin ؛ S. O. Alhabshi

ناشر: A Journal of Interest free Microfinance

The failure of interest based programmes, such as micro-finance and anti-poverty programmes, in assisting the destitute, eradicating poverty and reducing income inequality encouraged the authors to study in depth the alternative financial institutions to interest/riba that can solve such problems ra... ادامه

سال:2019

نوع سند: Article

115 دانلود

234 بازدید

مشاهده/دانلود

Hybridization of Cuckoo Search and Firefly Algorithms to Calculate the Interaction Parameters in Phase Equilibrium Modeling Problems

کلیدواژه: Liquid-liquid equilibrium,Optimization,Cuckoo Search,Firefly Algorithm,Hybridization

نویسندگان: Merzougui Abdelkarim, Hasseine A., Regab S., Laiadi D.

ناشر: - Iranian Journal of Chemistry and Chemical Engineering - Iranian Journal of Chemistry and Chemical Engineering

Liquid-liquid equilibrium (LLE) problems such as: phase stability analysis, phase equilibrium calculations, chemical equilibrium calculations, binary interaction parameter identification of thermodynamic models and other problems of fluid characterization have been the core subject of many recent st... ادامه

سال:2020

نوع سند: Article

3 دانلود

9 بازدید

مشاهده/دانلود

Experimental Study of Contaminant Transport in Porous Media Using ANFIS-RBF Hybrid Model

کلیدواژه: Experimental,ANFIS,Radial Basis Function,Contaminant

نویسندگان: MOUSAVI SHAHRAM

ناشر: مهندسی عمران مدرس - Modares Civil Engineering journal

Some uncertainties in the field parameters such as dispersion and hydraulic conductivity, unknown boundary conditions and the noise of the measured data are among the main limiting factors in the groundwater flow and contaminant transport modeling. Thus, simulation of contaminant transport can be an... ادامه

سال:2018

نوع سند: Article

0 دانلود

13 بازدید

مشاهده/دانلود

Financing SMEs Through the Islamic Qard al-Hasan

کلیدواژه:

نویسندگان: A. Sa’ad ؛ A. A. Pitchay

ناشر:

Financing small and medium enterprises (SMEs) is one of the most important mechanisms to boost economic growth in both developed and developing nations. The contributions of SMEs in many countries’ gross domestic product (GDP) have been overwhelming. SMEs improve job creation in all sectors of the e... ادامه

سال:2020

نوع سند: Article

127 دانلود

222 بازدید

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