Asian Journal of Mathematics and Computer Research最新文献

{"title":"Statistical Trend Analysis on Infant Mortality Rate and Estimation of Live Births in Nigeria","authors":"Orumie, Ukamaka Cynthia, Inumimonte, David Ennis, Samuel Nvene","doi":"10.56557/ajomcor/2023/v30i18183","DOIUrl":"https://doi.org/10.56557/ajomcor/2023/v30i18183","url":null,"abstract":"Particularly in nations like Nigeria, the likelihood that a child may pass away before turning one is rather distressing. Infant Mortality Rate is the term used to describe this. Ending all preventable deaths of children under the age of five is goal 3.2 of the Sustainable Development Goals (SDGs). This study's foundation is the statistical analysis of Nigeria's infant mortality rate. The secondary data was gathered from the World Bank Survey, which included annual records of the infant mortality rate in Nigeria over the ten-year period from 2012 to 2021. To assess the trend and estimate the model parameters, Time Series Analysis (TREND) was the statistical method employed. The researchers used the trend to predict for the following ten years. Both the number of infant fatalities and the infant mortality rate are moving decrease, according to the trend study. This demonstrates that the Infant Mortality Rate in Nigeria steadily decreases as the live birth rate rises, yet it is unlikely that it will reach zero or be insignificant by 2032. According to the analysis, the quadratic trend model fits the data sets the best because it has the smallest error margin and an R-square value that is extremely close to 100%. According to the model developed, Nigeria's infant mortality rate is expected to continue to drop throughout the course of the following ten years. Yet, the finding is not striking enough because, in 2031, the infant mortality rate will probably still be higher than 45. Hence, if appropriate measures are not implemented, we will not be able to achieve the goal of eliminating all preventable deaths of children under the age of five and lowering new birth deaths to no more than 12 per thousand. Also, it was seen from the table and graphs that the infant mortality rate decreased more rapidly from 2016 to 2017. This shows that the Sustainable Development Goals (SDGs), which went into effect in 2016, contributed to a decrease in the infant mortality rate.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130939237","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}

{"title":"Research on the Game Mechanism of Rational Outsourcing Database","authors":"Li Liu","doi":"10.56557/ajomcor/2023/v30i18165","DOIUrl":"https://doi.org/10.56557/ajomcor/2023/v30i18165","url":null,"abstract":"While outsourcing databases are widely used, their security is also facing great challenges. In order to reduce the validation and communication overheads of outsourcing solutions, this paper designs a game mechanism for rational outsourcing databases based on game theory, setting incentives and defining a payoff matrix to ensure that each rational participant will only maintain an honest strategy so as not to contradict the self-interest nature and achieve a Nash equilibrium. Finally, through simulation experiments, this paper proves that the use of utility functions to secure data can reduce the user's verification overhead and communication overhead, which has important research value.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128335283","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}

{"title":"Analysis of Mechanisms for Resource Management in IoT: Performance of Mutual Authentication in the Context of Fog and EDGE-Fog Computing","authors":"Gaye Abdourahime, Ousmane Ndiaye","doi":"10.56557/ajomcor/2023/v30i18138","DOIUrl":"https://doi.org/10.56557/ajomcor/2023/v30i18138","url":null,"abstract":"The Internet is now experiencing an unprecedented expansion with the development of connected objects. At its inception the IoT, like any revolution, its objectives were quite limited. Its main objective was to reduce the effort of human data entry in order to allow the storage and automatic processing of the latter. Moreover, objects generate a lot of data that they cannot store or process by themselves, hence the need for external support. This is how Cloud Computing comes to answer this problem, making the success of IoT. This technology guarantees the storage, availability, processing, etc. of data, its integration into the latter is known as \"Cloud of Things\" CoT. The data generated should not only be stored, but rather processed in order to derive knowledge, decision making. The objective of our work is to analyze mutual authentication management models of IoT devices to optimize resources trying to provide solutions in the face of resource availability. To carry out this work, we analyzed the application areas and the challenges of IoT. Then, we studied IoT security threats. Our work ends with a study and an analysis mechanism of mutual authentication management models of IoT based on uncertificated Authentication mechanisms, Elliptic curve cryptography authentication, Mutual Authentication in the context of Fog Computing.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129395853","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}

{"title":"Inventory Control System on Some Products of Some Selected Supermarkets in Port-Harcourt Rivers State","authors":"U. C. Orumie, F. E. Nzerem","doi":"10.56557/ajomcor/2023/v30i18129","DOIUrl":"https://doi.org/10.56557/ajomcor/2023/v30i18129","url":null,"abstract":"Inventory management and control are essential to that company since lack of it poses a threat to a company's viability. The inventory management system has been undercut by supermarkets and other corporate entities, increasing the risk of missing goods and faulty record keeping (stock keeping). This leads to poor stock management in supermarkets and other commercial enterprises due to ignorance of the optimal time to place an order and the perfect quantity of the commodity to be ordered. The goal of this study is to implement an inventory control system in selected supermarkets within university of port Harcourt environment. This includes examining the types of stock control measures used by supermarkets, as well as determining the Economic Order Quantity (EOQ), the Purchase Cost Per Cycle, and the Total Cost Per Unit Time, and obtaining the optimum level using a single item static model with and without product shortages. Purposive sampling was used to select the items from among the wide range of goods offered in the various supermarkets, including Market Square Supermarket Choba Branch, Everyday Supermarket Choba Branch, and Gemstone Ultra Mart Alakahia, all of which are located near the University of Port Harcourt. According to comparisons outcomes using the values obtained as the EOQ, and Lead time, Market Square supermarket had the highest sales, followed by Everyday supermarket, and then Gemstone supermarkets, with the exception of Dettol, where Everyday Supermarket is in the lead. The most regular purchase item is Golden Morning Products, followed by Indomitable and Dettol Disinfectant in the three supermarkets. Considering the EOQ (Q*) results, the inventory cycle duration (to*), and the overall cost per unit of time (CT*) for both when shortage is allowed and when not allowed, the Indomitable product in the Market Square supermarket has the highest EOQ, the Dettol disinfectant product (250ml) in the Gem Stone supermarket has the cycle length to*, and the Golden Morn product in the Market Square supermarket has the highest optimal total cost per unit time (CT).","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128631219","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}

{"title":"DYNAMIC BEHAVIOR OF THE SOLUTIONS FOR A FINANCIAL SYSTEM WITH DELAYS","authors":"C. Feng","doi":"10.56557/ajomcor/2022/v29i48052","DOIUrl":"https://doi.org/10.56557/ajomcor/2022/v29i48052","url":null,"abstract":"Several four-dimensional financial systems with or without time delays have been discussed in the literature. In this paper, the dynamics of a general four-dimensional financial model with four delays is investigated. The dynamic behavior of the solutions is provided by using of the mathematical analysis method. Two sufficient conditions to guarantee the existence of the permanent oscillations for the model are obtained. It is shown that the permanent oscillations occur if there exists a unique unstable equilibrium and all solutions are bounded of the financial system. Numerical simulation is provided to demonstrate the proposed results.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129319522","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}

{"title":"EFFECTS OF SLIP VELOCITY AND VISCOUS DISSIPATION ON MHD BOUNDARY LAYER FLOW OF A MICROPOLAR-NANOFLUID OVER A WEDGE WITH INTERNAL HEAT GENERATION","authors":"M. Abdou, E. EL-RASHIDI","doi":"10.56557/ajomcor/2022/v29i48001","DOIUrl":"https://doi.org/10.56557/ajomcor/2022/v29i48001","url":null,"abstract":"A numerical model is developed to examine the boundary layer flow of an electrically conducting, viscous incompressible micropolar nanofluid (Al2O3/water) over a wedge in the presence of a transverse magnetic field and viscous dissipation with internal heat generation/absorption. \u0000The combined effect of both cases constant fluid suction and injection is considered, also the velocity slip’s effect is also taken into account. The governing equations have been solved using the Runge-Kutta numerical integration procedure after reducing them to boundary layer equations. Various effects of parameters that govern the flow like velocity, micro-rotation, temperature as well as for local skin friction coefficient, local Nusselt number and local wall couple stress have been illustrated graphically.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130266974","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}

{"title":"NEW RESULTS ON K- STABILITY AND BOUNDEDNESS OF SOLUTIONS OF A CERTAIN DIFFERENTIAL EQUATIONS IN BANACH SPACES INTERACTING WITH WEAKLY SUBSYSTEMS","authors":"E. P. Ebiendele, F. U. Nosakhare, A. A. Momoh","doi":"10.56557/ajomcor/2022/v29i47986","DOIUrl":"https://doi.org/10.56557/ajomcor/2022/v29i47986","url":null,"abstract":"The article gives new results of K- Stability and Boundedness of solutions of certain differential equations in Banach Spaces interacting with weakly subsystems. Some results from the theory of semigroups, and the description of the general method of solution of the posed problem were also given.  The application of the matrix – valued Lyapunov function is discussed and the main theorem of the method is formulated for differential equations in a Banach Space. The vector Lyapunov function was the main tool applied for the analysis of K – Stability and Boundedness of a system in Banach Spaces. All the results of this Article for the ‘equation (2.2)’ are essentially new.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121387890","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}

{"title":"STUDY ON ALLOCATION OF PRODUCTION RESOURCES FOR AN OPTIMAL PROFIT MAKING","authors":"P. N. Ezra, E. Ossai, F. O. Ohanuba, M. Eze","doi":"10.56557/ajomcor/2022/v29i47988","DOIUrl":"https://doi.org/10.56557/ajomcor/2022/v29i47988","url":null,"abstract":"In this study, the limited resources of a production company are maximally allocated for the production of cake of different sizes for optimal profit making. The datasets used were collected on the profit made from four different sizes of the cake and on the available production resources of the company. The profits made from the various cake sizes form the objective function coefficients; the measurements of the various resources used for the production of the different sizes of the cake form the coefficients in the constraint equations while the total available resource quantities form the right hand sides of the constraint equations. The resultant linear programming problem was solved and the result showed the various quantities of the cake sizes that should be produced so as to make an optimal profit. Sensitivity analysis was carried out to determine the robustness of the formulated model.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120914348","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}

{"title":"COSMOLOGICAL BIANCHI TYPE – V MODEL WITH ZERO MASSIVE SCALAR FIELD","authors":"Berako Betso Fetese","doi":"10.56557/ajomcor/2022/v29i47982","DOIUrl":"https://doi.org/10.56557/ajomcor/2022/v29i47982","url":null,"abstract":"In this paper, we discussed cosmological model in the general theory of relativity considering Bianchi type-V metric where the matter is in the form of zero massive scalar field. Exact solutions to the field equations are derived when the metric potentials are functions of cosmic time only. Some physical and geometrical properties of the solutions are also discussed.","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133563191","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}

{"title":"STABILITY ANALYSIS OF FINITE DIFFERENCE METHOD FOR ONE WAY WAVE EQUATION","authors":"K. Habib","doi":"10.56557/ajomcor/2022/v29i37974","DOIUrl":"https://doi.org/10.56557/ajomcor/2022/v29i37974","url":null,"abstract":"There are many problems in the field of science, engineering and technology which can be solved by differential equations formulation. In this paper we consider the convergence of finite difference method Lax -Wondroff one step, Lax- Wondroff two step methods and Backward time central space for solving one dimensional, time-dependent hyperbolic equation with Drichlet boundary condition. We present the derivation of the schemes and develop a computer program using python software to implement it. By the support of the numerical problems convergence of the schemes have been determined. The explicit scheme is convergent and conditionally stable and implicit scheme is convergent and unconditionally stable for any value of growth factor G .","PeriodicalId":200824,"journal":{"name":"Asian Journal of Mathematics and Computer Research","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125278400","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}