Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.189-200
A. O. Vezirov, G. V. Levchenko, P. Pavlov, E. E. Demin
Preparing and using soil in greenhouses is a laborious and energy consuming process. The lack of specialized technical means hinders obtaining the required quality of soil mixtures. For mixing and loading soil components for greenhouses, a mixer-loader with a screw milling operating element has been developed. One of the main stages in the development of new designs is to determine the main design parameters of the screw-milling operating element, which is the main in the mixing process. The theoretical and experimental studies established the influence of the parameters on the indicators of the efficiency of the preparation of soil mixtures and substantiated their rational values. The shape of the cutting teeth installed on the screw-milling operating element is substantiated. As a result of research, technological indicators were obtained: the mixing quality factor is 0.96...0.98, the moisture and air capacities of the resulting soil mixtures reach 51 and 48%.
{"title":"The Study the Influence of the Parameters of the Operating Elements on the Technological Indicators of the Operation of the Greenhouse Soil Loader and Mixer","authors":"A. O. Vezirov, G. V. Levchenko, P. Pavlov, E. E. Demin","doi":"10.37622/adsa/16.1.2021.189-200","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.189-200","url":null,"abstract":"Preparing and using soil in greenhouses is a laborious and energy consuming process. The lack of specialized technical means hinders obtaining the required quality of soil mixtures. For mixing and loading soil components for greenhouses, a mixer-loader with a screw milling operating element has been developed. One of the main stages in the development of new designs is to determine the main design parameters of the screw-milling operating element, which is the main in the mixing process. The theoretical and experimental studies established the influence of the parameters on the indicators of the efficiency of the preparation of soil mixtures and substantiated their rational values. The shape of the cutting teeth installed on the screw-milling operating element is substantiated. As a result of research, technological indicators were obtained: the mixing quality factor is 0.96...0.98, the moisture and air capacities of the resulting soil mixtures reach 51 and 48%.","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90073747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.121-132
V. Korsak, N. Pronko, O. Karpova, V. Shadskikh, V. Kizhaeva
The article presents the results of the studies concerning the influence of irrigation methods on agrophysical properties and productivity of irrigated medium loamy dark chestnut soil of dry steppe on the left bank of the Volga river. It is proved that the use of surface irrigation by strip flooding leads to the most unfavorable changes in the agrophysical state of the upper layers of the studied soil difference in comparison with the use of surface irrigation along furrows and sprinkling via wide-grip sprinklers. With strip irrigation the total porosity of the arable and subsurface soil horizons decreases to the greatest extent in comparison with furrows and sprinkling, the proportion of the most agronomically valuable meso-aggregates in the soil structure decreases, while the proportion of small silty micro-aggregates and large macro-aggregates increases to the maximum. All this determines the lowest productivity of irrigated dark chestnut soil after irrigation in strips, as compared to sprinkling and furrow irrigation (spring wheat yield decrease makes 0.55 t/ha and 0.77 t/ha, respectively).
{"title":"Influence of irrigation methods on agrophysical properties and productivity of dark chestnut soils of dry steppe on the left bank of the Volga river","authors":"V. Korsak, N. Pronko, O. Karpova, V. Shadskikh, V. Kizhaeva","doi":"10.37622/adsa/16.1.2021.121-132","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.121-132","url":null,"abstract":"The article presents the results of the studies concerning the influence of irrigation methods on agrophysical properties and productivity of irrigated medium loamy dark chestnut soil of dry steppe on the left bank of the Volga river. It is proved that the use of surface irrigation by strip flooding leads to the most unfavorable changes in the agrophysical state of the upper layers of the studied soil difference in comparison with the use of surface irrigation along furrows and sprinkling via wide-grip sprinklers. With strip irrigation the total porosity of the arable and subsurface soil horizons decreases to the greatest extent in comparison with furrows and sprinkling, the proportion of the most agronomically valuable meso-aggregates in the soil structure decreases, while the proportion of small silty micro-aggregates and large macro-aggregates increases to the maximum. All this determines the lowest productivity of irrigated dark chestnut soil after irrigation in strips, as compared to sprinkling and furrow irrigation (spring wheat yield decrease makes 0.55 t/ha and 0.77 t/ha, respectively).","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90066611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.201-215
Polshchykov K. A., Lazarev S. A., K. O. R., V. G. S.
{"title":"An algorithm determining the optimal length of the queue of requests for data transmission over the channels of a wireless ad-hoc network","authors":"Polshchykov K. A., Lazarev S. A., K. O. R., V. G. S.","doi":"10.37622/adsa/16.1.2021.201-215","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.201-215","url":null,"abstract":"","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83557270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.257-297
Nabila Al Balushi
This paper is a review of the literature related to reliability analysis of complex industrial systems. Many industrial systems have been analysed over the last 3 decades under different operational conditions and assumptions. Mostly, the systems were analysed for estimating the reliability indices such as mean time to systems failure, availability analysis, failure frequency, mean down time, expected busy periods of the repairmen, and their respective cost-benefit analysis. The main objective all over these years was to focus on the system performance over a long period of time; it’s basically case studies on system performance of industrial system. An attempt has been made in this paper to collect the sufficient literature and recommend some useful tips to diversify the discipline for more fruitful results on the system performance.
{"title":"A Review of the Reliability Analysis of the Complex Industrial Systems","authors":"Nabila Al Balushi","doi":"10.37622/adsa/16.1.2021.257-297","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.257-297","url":null,"abstract":"This paper is a review of the literature related to reliability analysis of complex industrial systems. Many industrial systems have been analysed over the last 3 decades under different operational conditions and assumptions. Mostly, the systems were analysed for estimating the reliability indices such as mean time to systems failure, availability analysis, failure frequency, mean down time, expected busy periods of the repairmen, and their respective cost-benefit analysis. The main objective all over these years was to focus on the system performance over a long period of time; it’s basically case studies on system performance of industrial system. An attempt has been made in this paper to collect the sufficient literature and recommend some useful tips to diversify the discipline for more fruitful results on the system performance.","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83464973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.91-112
A. El-Sayed, Sahar Y. Issa, N. M. Mawed
In this paper, we discuss sufficient conditions for the existence of solutions for a coupled system of hybrid fractional-order differential equation. The continuous dependence of the unique solution on the delay functions will be studied.
本文讨论了一类混合分数阶微分方程耦合系统解存在的充分条件。研究了唯一解对时滞函数的连续依赖。
{"title":"On A Coupled System of Hybrid Fractional-order Differential Equations in Banach Algebras","authors":"A. El-Sayed, Sahar Y. Issa, N. M. Mawed","doi":"10.37622/adsa/16.1.2021.91-112","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.91-112","url":null,"abstract":"In this paper, we discuss sufficient conditions for the existence of solutions for a coupled system of hybrid fractional-order differential equation. The continuous dependence of the unique solution on the delay functions will be studied.","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76738542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.133-157
J. Aramaki
In this paper, we derive necessary and sufficient conditions for the existence of a weak solution to the Maxwell-Stokes type equation associated with slip-Navier boundary condition. Our equation is nonlinear and contains, so called, p-curlcurl system. Moreover, we give a result on the continuous dependence of the weak solution on the data. 2010 Mathematics Subject Classification: 35A05, 35H30, 35A15, 35D05
{"title":"Necessary and Sufficient Conditions for the Existence of aWeak Solution to the Maxwell-Stokes Type Equation","authors":"J. Aramaki","doi":"10.37622/adsa/16.1.2021.133-157","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.133-157","url":null,"abstract":"In this paper, we derive necessary and sufficient conditions for the existence of a weak solution to the Maxwell-Stokes type equation associated with slip-Navier boundary condition. Our equation is nonlinear and contains, so called, p-curlcurl system. Moreover, we give a result on the continuous dependence of the weak solution on the data. 2010 Mathematics Subject Classification: 35A05, 35H30, 35A15, 35D05","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"71 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82287507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.355-368
A. El-Sayed, S. Salman, S. Ramadan
In this paper, we consider the singularly perturbation of the Riccati difference equation with two different delays. At first, we study the local stability of the fixed points and its corresponding characteristic equation of the linearized system. At second, we show that there is Hopf bifurcation with restricted condition for occurrence. Then we get out the discretized system by applying the method of steps. Local stability and bifurcation analysis of the discretized system. We compare the results with the results of the Riccati differential equation with two different delays. Finally, numerical simulations including bifurcation diagram, Lyapunov exponent and phase portraits are carried out to confirm the analytical findings .
{"title":"On the dynamics of the singularly perturbed Riccati differential equation with two different delays","authors":"A. El-Sayed, S. Salman, S. Ramadan","doi":"10.37622/adsa/16.1.2021.355-368","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.355-368","url":null,"abstract":"In this paper, we consider the singularly perturbation of the Riccati difference equation with two different delays. At first, we study the local stability of the fixed points and its corresponding characteristic equation of the linearized system. At second, we show that there is Hopf bifurcation with restricted condition for occurrence. Then we get out the discretized system by applying the method of steps. Local stability and bifurcation analysis of the discretized system. We compare the results with the results of the Riccati differential equation with two different delays. Finally, numerical simulations including bifurcation diagram, Lyapunov exponent and phase portraits are carried out to confirm the analytical findings .","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"286 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80277443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.37622/adsa/16.1.2021.237-255
M. Torvattanabun, Theeranon Thawila
In this paper,we introduce a new the (4+1)-dimensional fractional Boiti-Leon-Manna-Pempinelli equation. The fractional ( m+ G ′ G ) extension method is successfully applied to establish the exact solutions for the the (4+1)-dimensional fractional Boiti-Leon-Manna-Pempinelli equation. The fractional derivative version of Yang modified, linked with fractional complex transform is employed to reduce fractional differential equations into the corresponding ordinary differential equations. The results show that the new exact solution are precisely obtained and the efficiency of the methods is demonstrated.
本文引入了一个新的(4+1)维分数阶boit - leon - manna - pempinelli方程。应用分数阶(m+ G’G)扩展方法，成功地建立了(4+1)维分数阶boit - leon - manna - pempinelli方程的精确解。利用杨氏修正的分数阶导数形式，结合分数阶复变换，将分数阶微分方程化为相应的常微分方程。结果表明，新的精确解得到了精确解，证明了方法的有效性。
{"title":"New Exact Solution of The (4+1)-Dimensional Fractional Boiti-Leon-Manna-Pempinelli Equation by The Expansion Method","authors":"M. Torvattanabun, Theeranon Thawila","doi":"10.37622/adsa/16.1.2021.237-255","DOIUrl":"https://doi.org/10.37622/adsa/16.1.2021.237-255","url":null,"abstract":"In this paper,we introduce a new the (4+1)-dimensional fractional Boiti-Leon-Manna-Pempinelli equation. The fractional ( m+ G ′ G ) extension method is successfully applied to establish the exact solutions for the the (4+1)-dimensional fractional Boiti-Leon-Manna-Pempinelli equation. The fractional derivative version of Yang modified, linked with fractional complex transform is employed to reduce fractional differential equations into the corresponding ordinary differential equations. The results show that the new exact solution are precisely obtained and the efficiency of the methods is demonstrated.","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"117 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91046394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-30DOI: 10.37622/ADSA/15.2.2020.217-229
E. Bassiouny, R. Rajagopalan
The present work investigates the thermoelastic behaviour of an elastic material occupying the half space subjected to shock wave in the context of the fractional order generalized thermoelasticity associated with two relaxation times. The Laplace transform together with the Laplace transform of Caputo fractional integral has been applied to solve the closed form of the obtained solutions in the Laplace transform domain. The inversion of the dimensionless physical quantities are obtained numericaly using a complex inversion formula of Laplace transform based on a Fourier expansion. The variation of the heat conduction, the distribution of the stress and the strain with the fractional order parameter, second relaxation time and time are studied and the results presented graphically. Comparison between the effects of different parameters has been illustrated graphically.
{"title":"Hyperbolic Two Temperature Fractional-Order Thermoelastic Model Subjected to Thermal Loading with Two Relaxation Times","authors":"E. Bassiouny, R. Rajagopalan","doi":"10.37622/ADSA/15.2.2020.217-229","DOIUrl":"https://doi.org/10.37622/ADSA/15.2.2020.217-229","url":null,"abstract":"The present work investigates the thermoelastic behaviour of an elastic material occupying the half space subjected to shock wave in the context of the fractional order generalized thermoelasticity associated with two relaxation times. The Laplace transform together with the Laplace transform of Caputo fractional integral has been applied to solve the closed form of the obtained solutions in the Laplace transform domain. The inversion of the dimensionless physical quantities are obtained numericaly using a complex inversion formula of Laplace transform based on a Fourier expansion. The variation of the heat conduction, the distribution of the stress and the strain with the fractional order parameter, second relaxation time and time are studied and the results presented graphically. Comparison between the effects of different parameters has been illustrated graphically.","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74986524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-30DOI: 10.37622/ADSA/15.2.2020.271-281
A. Radouane, Fouad Ouziney, D. Mentagui
In this paper, we establish a new type of minimax problem using the results given by [1]. 2010 Mathematics Subject Classification: 47H08;54H25;49J35,46A03
{"title":"A New Version of the Minimax Problem","authors":"A. Radouane, Fouad Ouziney, D. Mentagui","doi":"10.37622/ADSA/15.2.2020.271-281","DOIUrl":"https://doi.org/10.37622/ADSA/15.2.2020.271-281","url":null,"abstract":"In this paper, we establish a new type of minimax problem using the results given by [1]. 2010 Mathematics Subject Classification: 47H08;54H25;49J35,46A03","PeriodicalId":36469,"journal":{"name":"Advances in Dynamical Systems and Applications","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86816318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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