Computational Sciences and Engineering
https://cse.guilan.ac.ir/
Computational Sciences and Engineeringendaily1Thu, 01 Sep 2022 00:00:00 +0430Thu, 01 Sep 2022 00:00:00 +0430Bending and vibration analysis of the third-order rectangular nanoplates using the modified couple stress theory
https://cse.guilan.ac.ir/article_5626.html
In this paper a third-order rectangular nanoplate model is developed for the bending and vibration analysis of a graphene nanoplate based on a modified couple stress theory. The bending rates and dimensionless bending values under uniform surface traction and sinusoidal load, and the frequencies of the nanoplate are all obtained for various plate's dimensional ratios and material length scale to thickness ratios. The governing equations are numerically solved. The effect of material length scale, length, width and thickness of the nanoplate on the bending and vibration ratios are investigated and the results are presented and discussed in details.Estimation of elastic modulus and Poisson’s ratio of concrete containing graphene nanosheets: A focus on nano-filler agglomeration and hydration time
https://cse.guilan.ac.ir/article_5650.html
In the current study, the influences of adding graphene nanosheets (GNSs) on the elastic characteristics of concrete are examined using the Mori-Tanaka micromechanical model. By the use of the base concrete hydration equation, the role of hydration time in the Young&rsquo;s modulus and Poisson ratio of GNS-filled concrete is analyzed. Also, the formation of GNS agglomeration as one of the most major microstructural features of composite materials containing nano-sized particles is considered in the micromechanical simulation. Significant contribution of the hydration time to the elastic properties of GNS-reinforced concrete is confirmed. Generally, the addition of GNSs can help to enhance the concrete elastic modulus and decrease the Poisson&rsquo;s ratio. The results show that well-dispersed GNSs lead to the enhancement of mechanical performance of the concrete, whereas GNS agglomeration causes significant reduction of elastic modulus.Weighted Bi-directional GRU Capsule Ensemble Approach for Multi-Domain Sentiment Analysis
https://cse.guilan.ac.ir/article_5982.html
With the advent of the Web today, users' opinions can be incorporated into a variety of applications. Automated methods have been developed to derive users' general sense from these textual comments, often known as sentiment analysis, and aim to determine the polarity of a text relative to a subject. One of the challenges is the inability to use one domain of data to analysis sentiment in another domain and the lack of sufficient labelled data in a particular domain. To address these challenges, multi-domain sentiment analysis systems have been developed. This paper propose Bi-GRU Capsule ensemble approaches for multi-domain sentiment classification to address the mentioned issues. Using a weighted score of Term-Frequency and Inverse Document Frequency degree and the initial polarity of the sample test data on each domain, a new aggregated score of final polarity is obtained. The DRANZIERA protocol is used for evaluation of the proposed model. The outcomes demonstrate the effectiveness of the proposed approach and also set a plausible starting point for future workBernoulli Wavelet Method for Numerical Solution of Fokker-Planck-Kolmogorov Time Fractional Differential Equations
https://cse.guilan.ac.ir/article_5780.html
The purpose of this paper is to present a wavelet method for numerical solutions Fokker-Planck-Kolmogorov time-fractional differential equations with initial and boundary conditions. The authors was employed the Bernoulli wavelets for the solution of Fokker-Planck-Kolmogorov time-fractional differential equation. We calculated the Bernoulli wavelet fractional integral operation matrix of the fractional order and the upper error boundary for the Riemann‐Levilleville fractional integral operation matrix and the Bernoulli wavelet fractional integral operation matrix. The Fokker-Planck-Kolmogorov time-fractional differential equation is converted to the linear equation using the Bernoulli wavelet operation matrix in this technique. This method has the advantage of being simple to solve. The simulation was carried out using MATLAB software. Finally, the proposed strategy was used to solve certain problems. the Bernoulli wavelet and Bernoulli fraction of the fractional order, the Bernoulli polynomial, and the Bernoulli fractional functions were introduced. Explaining how functions are approximated by fractional-order Bernoulli wavelets as well as fractional-order Bernoulli functions. The Bernoulli wavelet fractional integral operational matrix was used to solve the Fokker-Planck-Kolmogorov fractional differential equations. The results for some numerical examples are documented in table and graph form to elaborate on the efficiency and precision of the suggested method. The results revealed that the suggested numerical method is highly accurate and effective when used to Fokker-Planck-Kolmogorov time fraction differential equationsAnalysis of COVID-19 outbreak in Iran by a Suite of Artificial Adaptive System Algorithms
https://cse.guilan.ac.ir/article_4731.html
COVID-19 outbreak in Iran is studied and analyzed using Topological Weighted Centroid (TWC) algorithms. According to this algorithm the origin of the outbreak is mainly in the city of Qom. In addition, it predicts the centers of the epidemic spread in the future as well as pathways of this spread.Thermal-Fluidic Study of Drying Chamber of Photovoltaic-powered Forced Convection Solar Dryer using Finite Element Method
https://cse.guilan.ac.ir/article_5649.html
Forced convection solar dryer has been widely used for effective drying of agricultural products because it permits better ventilation which makes it less dependent on weather conditions and removes moisture faster, hence preventing stagnation. Though the solar dryer has proved its usefulness, its major obstacle in its applications is the optimization of its performance. For the future sustenance of the solar dryers, the design, development, and optimization must depend on thorough theoretical tools. Hence, the current study presents the finite element analysis simulation of forced convective heat transfer in a photo voltaic-powered solar dryer. For performance optimization in the solar dryer analysis, the effects of the following factors such as blower speeds, the chamber ratio of the solar dryer, on the pressure and temperature distributions as well as the velocity in the drying chamber were investigated. From the results, the performance of the drying chamber increases as its aspect ratio decreases and as the blower speed increases. The results of this work could therefore be used in the design of an optimized Photovoltaic-ventilated forced convection solar dryer.Φ-Connes amenability of l1-Munn algebras
https://cse.guilan.ac.ir/article_6077.html
Generalizing the notion of Connes amenability for LM(A, P, m, n), we study &Phi;- Connes amenability of LM(A, P, m, n) that &Phi; is a character on LM(A, P, m, n). Among the other things, we study when &Phi;- Connes amenability of LM(A, P, m, n) is equivalent to &phi;- Connes amenability of A where &phi; is the unique character on A associated to &Phi;. We apply this results to semigroup algebras.