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Optimization of shear connectors with high strength nano concrete using soft computing techniques
Sedghi, Yadollah,Zandi, Yosef,Paknahad, Masoud,Assilzadeh, Hamid,Khadimallah, Mohamed Amine Techno-Press 2021 Advances in nano research Vol.11 No.6
This paper conducted mainly for forecasting the behavior of the shear connectors in steel-concrete composite beams based on the different factors. The main goal was to analyze the influence of variable parameters on the shear strength of C-shaped and L-shaped angle shear connectors. The method of ANFIS (adaptive neuro fuzzy inference system) was applied to the data in order to select the most influential factors for the mentioned shear strength forecasting. Five inputs are considered: height, length, thickness of shear connectors together with concrete strength and respective slip of the shear connectors after testing. The ANFIS process for variable selection was also implemented in order to detect the predominant factors affecting the forecasting of the shear strength of C-shaped and L-shaped angle shear connectors. The results show that the forecasting methodology developed in this research is useful for enhancing the multiple performances characterizing in the shear strength prediction of C and L shaped angle shear connectors analyzing.
COMMON FIXED POINT OF MAPS IN COMPLETE PARTIAL METRIC SPACES
Sedghi, Shaban,Shobkolaei, Nabiollah The Youngnam Mathematical Society 2013 East Asian mathematical journal Vol.29 No.1
In this paper, we prove some common fixed point results for some mappings satisfying generalized contractive condition in complete partial metric space.
COMMON FIXED POINT OF COMPATIBLE MAPS OF TYPE (γ) ON COMPLETE FUZZY METRIC SPACES
Sedghi, Shaban,Turkoglu, Duran,Shobe, Nabi Korean Mathematical Society 2009 대한수학회논문집 Vol.24 No.4
In this paper, we establish a common fixed point theorem in complete fuzzy metric spaces which generalizes some results in [9].
COMMON FIXED POINT THEOREMS FOR TWO MAPPINGS IN $\mathcal{M}$-FUZZY METRIC SPACES
Sedghi, Shaban,Im, Jung-Hwa,Shob, Nabi The Youngnam Mathematical Society 2011 East Asian mathematical journal Vol.27 No.3
In this paper, we prove some common fixed point theorem for two nonlinear mappings in complete $\mathcal{M}$-fuzzy metric spaces. Our main results improved versions of several fixed point theorems in complete fuzz metric spaces.
FIXED POINT THEOREMS FOR SIX WEAKLY COMPATIBLE MAPPINGS IN $D^*$-METRIC SPACES
Sedghi, Shaban,Khan, M. S.,Shobe, Nabi The Korean Society for Computational and Applied M 2009 Journal of applied mathematics & informatics Vol.27 No.1
In this paper, we give some new definitions of $D^*$-metric spaces and we prove a common fixed point theorem for six mappings under the condition of weakly compatible mappings in complete $D^*$-metric spaces. We get some improved versions of several fixed point theorems in complete $D^*$-metric spaces.
A COMMON FIXED POINT THEOREM IN TWO M-FUZZY METRIC SPACES
Sedghi, Shaban,Shobe, Nabi Korean Mathematical Society 2007 대한수학회논문집 Vol.22 No.4
In this paper, we give some new definitions of M-fuzzy metric spaces and we prove a common fixed point theorem for six mappings under the condition of compatible mappings of first or second type in two complete M-fuzzy metric spaces.
Estimation of weibull parameters for wind energy application in Iran's cities
Sedghi, Majid,Hannani, Siamak K.,Boroushaki, Mehrdad Techno-Press 2015 Wind and Structures, An International Journal (WAS Vol.21 No.2
Wind speed is the most important parameter in the design and study of wind energy conversion systems. The weibull distribution is commonly used for wind energy analysis as it can represent the wind variations with an acceptable level of accuracy. In this study, the wind data for 11 cities in Iran have been analysed over a period of one year. The Goodness of fit test is used for testing data fit to weibull distribution. The results show that this data fit to weibull function very well. The scale and shape factors are two parameters of the weibull distribution that depend on the area under study. The kinds of numerical methods commonly used for estimating weibull parameters are reviewed. Their performance for the cities under study was compared according to root mean square and wind energy errors. The result of the study reveals the empirical, modified maximum likelihood estimate of wind speed with minimum error. Also, that the moment and modified maximum likelihood are the best methods for estimating the energy production of wind turbines.
Application of ANFIS technique on performance of C and L shaped angle shear connectors
Sedghi, Yadollah,Zandi, Yousef,Shariati, Mahdi,Ahmadi, Ebrahim,Azar, Vahid Moghimi,Toghroli, Ali,Safa, Maryam,Mohamad, Edy Tonnizam,Khorami, Majid,Wakil, Karzan Techno-Press 2018 Smart Structures and Systems, An International Jou Vol.22 No.3
The behavior of concrete slabs in composite beam with C and L shaped angle shear connectors has been studied in this paper. These two types of angle shear connectors' instalment have been commonly utilized. In this study, the finite element (FE) analysis and soft computing method have been used both to present the shear connectors' push out tests and providing data results used later in soft computing method. The current study has been performed to present the aforementioned shear connectors' behavior based on the variable factors aiming the study of diverse factors' effects on C and L shaped angle in shear connectors. ANFIS (Adaptive Neuro Fuzzy Inference System), has been manipulated in providing the effective parameters in shear strength forecasting by providing input-data comprising: height, length, thickness of shear connectors together with concrete strength and the respective slip of shear connectors. ANFIS has been also used to identify the predominant parameters influencing the shear strength forecast in C and L formed angle shear connectors.
Some Properties of S-metric Spaces and Fixed Point Results
Sedghi, Shaban,Altun, Ishak,Shobe, Nabi,Salahshour, Mohammad Ali Department of Mathematics 2014 Kyungpook mathematical journal Vol.54 No.1
In this paper, we introduce S-metric spaces and give their some properties. Also we present a common fixed point theorem for multivalued maps on complete S-metric spaces. The single valued case and an illustrative example are given.
A LOCAL FIXED POINT THEOREM ON FUZZY METRIC SPACES
Sedghi, Shaban,Altun, Ishak,Shobe, Nabi Korean Mathematical Society 2012 대한수학회논문집 Vol.27 No.2
In this paper, we present a common fixed point theorem for multivalued maps on $M$-complete fuzzy metric spaces. Also, the single valued case and an illustrative example are given.