Pub Date : 2020-12-30DOI: 10.5013/ijssst.a.21.01.06
Raïmi Aboudou Essessinou, G. Degla
In this paper, we test a fast elitist Non-Dominant Sorting Genetic Algorithm (NSGA-II) on a continuous quadratic multiobjective optimization problem. We use a big size of multiobjective programming for the Gross Domestic Product (GDP) quarterly disaggregation and we test different values of the NSGA-II parameters. We come to the conclusion that if the parameters are judiciously chosen, the NSGA-II algorithm converges to a single Pareto optimal solution in a regular and bounded set for the quadratic multiobjective optimization problem we used. It should be noted that elitism in the NSGA-II algorithm contributes to accelerating the rate of convergence and the overall performance of the genetic algorithm incorporated in it.
{"title":"On the Convergence of NSGA-II Algorithm to a Single Pareto Optimal Solution with a Continuous and Quadratic Multi-objective Optimization Program","authors":"Raïmi Aboudou Essessinou, G. Degla","doi":"10.5013/ijssst.a.21.01.06","DOIUrl":"https://doi.org/10.5013/ijssst.a.21.01.06","url":null,"abstract":"In this paper, we test a fast elitist Non-Dominant Sorting Genetic Algorithm (NSGA-II) on a continuous quadratic multiobjective optimization problem. We use a big size of multiobjective programming for the Gross Domestic Product (GDP) quarterly disaggregation and we test different values of the NSGA-II parameters. We come to the conclusion that if the parameters are judiciously chosen, the NSGA-II algorithm converges to a single Pareto optimal solution in a regular and bounded set for the quadratic multiobjective optimization problem we used. It should be noted that elitism in the NSGA-II algorithm contributes to accelerating the rate of convergence and the overall performance of the genetic algorithm incorporated in it.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89115162","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: 10.5013/IJSSST.A.21.04.04
A. Amiri, A. Moscardini
This discussion paper reviews the developing concepts in a major telecommunication company in the Middle East. The initial problem was whether to outsource or not, but this led to reflections on decision making, systems thinking, cybernetics and many other ethical, political and professional issues. This process of self-reflection can serve as a roadmap for decision makers and stimulate similar processes in their actions. It is important that modern scientists begin to answer the question “WHY” as opposed to always solving the ‘HOW’ problem.
{"title":"Critical Reflections on Outsourcing for a Mobile Communications Company","authors":"A. Amiri, A. Moscardini","doi":"10.5013/IJSSST.A.21.04.04","DOIUrl":"https://doi.org/10.5013/IJSSST.A.21.04.04","url":null,"abstract":"This discussion paper reviews the developing concepts in a major telecommunication company in the Middle East. The initial problem was whether to outsource or not, but this led to reflections on decision making, systems thinking, cybernetics and many other ethical, political and professional issues. This process of self-reflection can serve as a roadmap for decision makers and stimulate similar processes in their actions. It is important that modern scientists begin to answer the question “WHY” as opposed to always solving the ‘HOW’ problem.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89617857","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: 10.5013/ijssst.a.21.01.10
I. Batada, Somsit Duangekanong, Naree Achwarin
- We investigate the introduction of a customized Enterprise Resource Planning, ERP, software for higher education institutions in Pakistan specifically and across the globe generally. We explore the impact of ERP in a well-known university in Pakistan. A survey is carried out across the university’s relevant stakeholders to explore the impact that the customized Campus Management System has. We explore the shortcomings of existing ERP systems in the Higher Education sector and ways to mitigate them. The model proposed is influenced by IS Success Model of DeLone & McLean. The constructs of the research, after data collection, went through Confirmatory Analysis. The positive results were acquired through skewness and kurtosis. The Structural Equation Modelling, SEM, results also proved positive with significant correlation among the variables. Our findings showed that Instructor Quality, Course Quality, and Top Management Support have significant impact on ERP system quality and subsequently increase ERP user perceived usefulness and satisfaction. Our results are aimed at those who have been utilizing the conventional ERP system and have been struggling with their shortcoming, as well as those universities who have been in the process of selection of ERP system.
{"title":"Development of Extended Enterprise Resource Planning Module for Higher Education of Pakistan: A Case Study of Higher Education","authors":"I. Batada, Somsit Duangekanong, Naree Achwarin","doi":"10.5013/ijssst.a.21.01.10","DOIUrl":"https://doi.org/10.5013/ijssst.a.21.01.10","url":null,"abstract":"- We investigate the introduction of a customized Enterprise Resource Planning, ERP, software for higher education institutions in Pakistan specifically and across the globe generally. We explore the impact of ERP in a well-known university in Pakistan. A survey is carried out across the university’s relevant stakeholders to explore the impact that the customized Campus Management System has. We explore the shortcomings of existing ERP systems in the Higher Education sector and ways to mitigate them. The model proposed is influenced by IS Success Model of DeLone & McLean. The constructs of the research, after data collection, went through Confirmatory Analysis. The positive results were acquired through skewness and kurtosis. The Structural Equation Modelling, SEM, results also proved positive with significant correlation among the variables. Our findings showed that Instructor Quality, Course Quality, and Top Management Support have significant impact on ERP system quality and subsequently increase ERP user perceived usefulness and satisfaction. Our results are aimed at those who have been utilizing the conventional ERP system and have been struggling with their shortcoming, as well as those universities who have been in the process of selection of ERP system.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78509075","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: 10.5013/ijssst.a.21.01.03
K. M. Shihab, D. Perdana, S. Sussi
Blood pressure is an indicator of various diseases in the body such as high blood pressure, coronary heart disease, kidney disease and others, while currently the public needs help from agencies that have knowledge related to measure blood pressure. So that people can know and measure blood pressure independently without having to go to agencies that can take measurements, we need a tool that can measure blood pressure automatically and provide measurement statistics so that the public or patient can monitor the state of their blood pressure. In this paper, we will try to integrate digital blood pressure measuring devices with IoT (internet of things) using Arduino to process sensor values from MPX5050DP and NodeMCU to connect to the internet so that they can connect to firebase which acts as a database. The results of measurements using a blood pressure monitoring tool that we made using the MPX5050DP are not much different from those produced by a digital blood pressure measurement device from Omron. After the results are compared and processed with the relative error equation it produces 3.83% for systole and 2% for diastole and obtained an average of 13.94 s for the delay of each data transmission.
{"title":"Design and Implementation of IoT Based Blood Pressure Monitoring Tools","authors":"K. M. Shihab, D. Perdana, S. Sussi","doi":"10.5013/ijssst.a.21.01.03","DOIUrl":"https://doi.org/10.5013/ijssst.a.21.01.03","url":null,"abstract":"Blood pressure is an indicator of various diseases in the body such as high blood pressure, coronary heart disease, kidney disease and others, while currently the public needs help from agencies that have knowledge related to measure blood pressure. So that people can know and measure blood pressure independently without having to go to agencies that can take measurements, we need a tool that can measure blood pressure automatically and provide measurement statistics so that the public or patient can monitor the state of their blood pressure. In this paper, we will try to integrate digital blood pressure measuring devices with IoT (internet of things) using Arduino to process sensor values from MPX5050DP and NodeMCU to connect to the internet so that they can connect to firebase which acts as a database. The results of measurements using a blood pressure monitoring tool that we made using the MPX5050DP are not much different from those produced by a digital blood pressure measurement device from Omron. After the results are compared and processed with the relative error equation it produces 3.83% for systole and 2% for diastole and obtained an average of 13.94 s for the delay of each data transmission.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74951431","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: 10.5013/IJSSST.A.21.04.05
B. Phruksaphanrat, Chanyanuch Sinsomsak, Praphatsorn Khaoyangyuen
Effective transportation of goods and raw materials can increase factory efficiency and productivity. However, in the real production plant there are complexities of the system and constraints which make internal logistics management difficult. In this research, a computer simulation was used to analyze routing plans for a pickup truck factory, which currently uses Automated Guided Vehicles (AGVs) to transport materials and components. The efficiency of the current system is low and an increase of 16.97% in productivity has been planned, so there is a need to adjust the internal logistics to be more suitable. Therefore, two new designs of AGVs routing based on zone control are proposed: a two-loop path and a tandem three-loop path. The two-loop path is the best design, using the minimum number of AGVs for both the current and the future production levels,it has a short total distance and travel time, but has six crossover paths. Five AGVs are sufficient for the current level and six AGVs are adequate for the future production level. The design is more effective and economical than the existing AGVs routing plan. Although the tandem three-loop path has no crossover path, the distance is longer than the two-loop path for this case study. The tandem path is recommended in the existing research, but for the real-world problem, it is not always the best because it depends on layout configuration and zone design.
{"title":"Simulation Based AGVs Routing Analysis for Internal Logistics in Automotive Manufacturing","authors":"B. Phruksaphanrat, Chanyanuch Sinsomsak, Praphatsorn Khaoyangyuen","doi":"10.5013/IJSSST.A.21.04.05","DOIUrl":"https://doi.org/10.5013/IJSSST.A.21.04.05","url":null,"abstract":"Effective transportation of goods and raw materials can increase factory efficiency and productivity. However, in the real production plant there are complexities of the system and constraints which make internal logistics management difficult. In this research, a computer simulation was used to analyze routing plans for a pickup truck factory, which currently uses Automated Guided Vehicles (AGVs) to transport materials and components. The efficiency of the current system is low and an increase of 16.97% in productivity has been planned, so there is a need to adjust the internal logistics to be more suitable. Therefore, two new designs of AGVs routing based on zone control are proposed: a two-loop path and a tandem three-loop path. The two-loop path is the best design, using the minimum number of AGVs for both the current and the future production levels,it has a short total distance and travel time, but has six crossover paths. Five AGVs are sufficient for the current level and six AGVs are adequate for the future production level. The design is more effective and economical than the existing AGVs routing plan. Although the tandem three-loop path has no crossover path, the distance is longer than the two-loop path for this case study. The tandem path is recommended in the existing research, but for the real-world problem, it is not always the best because it depends on layout configuration and zone design.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"191 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74186172","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: 10.5013/IJSSST.A.21.04.11
T. Anuwongpinit, V. Chutchavong, C. Benjangkaprasert, K. Janchitrapongvej
Ultra-wideband (UWB) communication is a wireless transmission technology that allows for high data rates and bandwidths. Interference occurs with coexisting wireless systems when data is transmitted over the multipath channel. Hence, the emission power limitations must comply with the Federal Communication Commission (FCC) spectral mask regulation. The optimal pulse design is critical to meet the FCC requirements. This article presents a mathematical model to design Gaussian-like pulses for a UWB system using generalized Bessel polynomials (GBPs). Polynomials in communication circuit fields can form an appropriate transfer function for signal approximation. Our proposed mathematical model, which presents a characteristic of GBP compared to a simple Gaussian pulse, is closed-form. The simulation used MATLAB software to adjust GBP parameters and the derivative of the proposed pulse to obtain a suitable fit for the FCC spectral mask. The results show the proposed pulse that can meet the FCC spectral mask at the optimal points at 75.3 dB with frequency 1.61 GHz, 41.3 dB with 3.1 to 10.6 GHz, and 51.3 dB with 10.6 GHz. This verifies that a mathematical model can be applied to approximate the Gaussian-like pulse for a UWB application.
{"title":"Mathematical Model for Gaussian-Like Pulse Design for a UWB System Based on the Generalized Bessel Polynomials","authors":"T. Anuwongpinit, V. Chutchavong, C. Benjangkaprasert, K. Janchitrapongvej","doi":"10.5013/IJSSST.A.21.04.11","DOIUrl":"https://doi.org/10.5013/IJSSST.A.21.04.11","url":null,"abstract":"Ultra-wideband (UWB) communication is a wireless transmission technology that allows for high data rates and bandwidths. Interference occurs with coexisting wireless systems when data is transmitted over the multipath channel. Hence, the emission power limitations must comply with the Federal Communication Commission (FCC) spectral mask regulation. The optimal pulse design is critical to meet the FCC requirements. This article presents a mathematical model to design Gaussian-like pulses for a UWB system using generalized Bessel polynomials (GBPs). Polynomials in communication circuit fields can form an appropriate transfer function for signal approximation. Our proposed mathematical model, which presents a characteristic of GBP compared to a simple Gaussian pulse, is closed-form. The simulation used MATLAB software to adjust GBP parameters and the derivative of the proposed pulse to obtain a suitable fit for the FCC spectral mask. The results show the proposed pulse that can meet the FCC spectral mask at the optimal points at 75.3 dB with frequency 1.61 GHz, 41.3 dB with 3.1 to 10.6 GHz, and 51.3 dB with 10.6 GHz. This verifies that a mathematical model can be applied to approximate the Gaussian-like pulse for a UWB application.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74358217","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: 10.5013/ijssst.a.15.06.06
Z. Ibrahim, M. Jusof, M. Tumari
Ant colony system (ACS) algorithm is one of the biologically inspired algorithms that have been introduced to effectively solve a variety of combinatorial optimisation problems. In literature, ACS has been employed to solve DNA sequence design problem. The DNA sequence design problem was modelled based on a finite state machine in which the nodes represent the DNA bases {A, C, T, G}. Later in 2011, an extended computational model of finite state machine has been employed for DNA sequence design using ACS. The performance evaluation, however, was limited. In this study, the extended computational model of finite state machine is revisited and an extensive performance evaluation is conducted using 5, 7, 10, 15, 20, 25, 30, 35, and 40 agents/ants, each with 100 independent runs. The performance of the extended computational model is also benchmarked with the existing algorithm such as a Genetic Algorithm (GA), Multi-Objective Evolutionary Algorithm (MOEA), and Particle Swarm Optimisation (PSO). Keywords-Ant Colony System, DNA Sequence Design, Finite State Machine.
{"title":"Performance Evaluation and Benchmarking of an Extended Computational Model of Ant Colony System for DNA Sequence Design","authors":"Z. Ibrahim, M. Jusof, M. Tumari","doi":"10.5013/ijssst.a.15.06.06","DOIUrl":"https://doi.org/10.5013/ijssst.a.15.06.06","url":null,"abstract":"Ant colony system (ACS) algorithm is one of the biologically inspired algorithms that have been introduced to effectively solve a variety of combinatorial optimisation problems. In literature, ACS has been employed to solve DNA sequence design problem. The DNA sequence design problem was modelled based on a finite state machine in which the nodes represent the DNA bases {A, C, T, G}. Later in 2011, an extended computational model of finite state machine has been employed for DNA sequence design using ACS. The performance evaluation, however, was limited. In this study, the extended computational model of finite state machine is revisited and an extensive performance evaluation is conducted using 5, 7, 10, 15, 20, 25, 30, 35, and 40 agents/ants, each with 100 independent runs. The performance of the extended computational model is also benchmarked with the existing algorithm such as a Genetic Algorithm (GA), Multi-Objective Evolutionary Algorithm (MOEA), and Particle Swarm Optimisation (PSO). Keywords-Ant Colony System, DNA Sequence Design, Finite State Machine.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76299396","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: 10.5013/ijssst.a.21.01.01
Khemisara Kulmart, N. Pochai
The purpose of this research was to develop a numerical model of one-dimensional advection-diffusion equation for estimating salinity level in Lower Chao Phraya River, Thailand. The main numerical technique was MacCormack finite-difference scheme with initial and boundary conditions approximated by cubic spline interpolation. The estimates matched satisfactorily with actual measurement data from several salinity monitoring stations along the river. The final model was first used by Thailand’s Metropolitan Waterworks Authority for planning salinity control in 2018.
{"title":"A Numerical Model for Salinity Intrusion Measurement and Control Based on MacCormack Finite Difference Method and Cubic Spline Interpolation","authors":"Khemisara Kulmart, N. Pochai","doi":"10.5013/ijssst.a.21.01.01","DOIUrl":"https://doi.org/10.5013/ijssst.a.21.01.01","url":null,"abstract":"The purpose of this research was to develop a numerical model of one-dimensional advection-diffusion equation for estimating salinity level in Lower Chao Phraya River, Thailand. The main numerical technique was MacCormack finite-difference scheme with initial and boundary conditions approximated by cubic spline interpolation. The estimates matched satisfactorily with actual measurement data from several salinity monitoring stations along the river. The final model was first used by Thailand’s Metropolitan Waterworks Authority for planning salinity control in 2018.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76482416","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: 10.5013/ijssst.a.21.03.04
L. Angeline, R. Chin, Liau Chung Fan, I. Saad, K. Teo
Countless hours are lost in traffic jam every year. In the efforts to save time, drivers tend to speed up in traffic jam. However there is a traffic paradox suggests that speeding up in traffic jam may not necessarily time saving. Traffic flow is fundamentally dynamic in nature, where the flow formed is greatly subjected to the interaction amongst the drivers. As such, this paper aims to investigate how different speed weightage between the drivers instigating the jam clusters and to assess possible corrective action to reverse jam clusters formation. Based on the identified jam clusters, several properties such as cluster lengths and average speed within the clusters are analysed for corrective action. Traffic simulation with 300 samples on a 5 km length of road shows the proposed algorithm does improve travel time with improvement range from 1.96 % to 7.96 %.
{"title":"Traffic Jam Clustering Analysis with Countermeasure Strategies During Traffic Congestion","authors":"L. Angeline, R. Chin, Liau Chung Fan, I. Saad, K. Teo","doi":"10.5013/ijssst.a.21.03.04","DOIUrl":"https://doi.org/10.5013/ijssst.a.21.03.04","url":null,"abstract":"Countless hours are lost in traffic jam every year. In the efforts to save time, drivers tend to speed up in traffic jam. However there is a traffic paradox suggests that speeding up in traffic jam may not necessarily time saving. Traffic flow is fundamentally dynamic in nature, where the flow formed is greatly subjected to the interaction amongst the drivers. As such, this paper aims to investigate how different speed weightage between the drivers instigating the jam clusters and to assess possible corrective action to reverse jam clusters formation. Based on the identified jam clusters, several properties such as cluster lengths and average speed within the clusters are analysed for corrective action. Traffic simulation with 300 samples on a 5 km length of road shows the proposed algorithm does improve travel time with improvement range from 1.96 % to 7.96 %.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88792270","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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