Pub Date : 2021-11-26DOI: 10.46300/91015.2021.15.16
E. Šviráková
This article provides project managers, the cultural events organizers, a new approach to plan preparation and to the monitoring of events realization. The Dynamic Iteration Method introduced in this article is based on the system dynamic modelling and on the principles of project iterative development. The plan model and the reality model are structurally similar; they differ in values of exogenous variables. The new approach enables to easily monitor the real project course in close connection with the plan and to take timely controlling steps. The effects resulting from the manager´s decisionmaking process are compared with the plan in regular iterations. The method thus reminds of a traveller whose route is adjusted by a GPS navigation system.
{"title":"Dynamic Iteration Method: New Approach to Cultural Events Management","authors":"E. Šviráková","doi":"10.46300/91015.2021.15.16","DOIUrl":"https://doi.org/10.46300/91015.2021.15.16","url":null,"abstract":"This article provides project managers, the cultural events organizers, a new approach to plan preparation and to the monitoring of events realization. The Dynamic Iteration Method introduced in this article is based on the system dynamic modelling and on the principles of project iterative development. The plan model and the reality model are structurally similar; they differ in values of exogenous variables. The new approach enables to easily monitor the real project course in close connection with the plan and to take timely controlling steps. The effects resulting from the manager´s decisionmaking process are compared with the plan in regular iterations. The method thus reminds of a traveller whose route is adjusted by a GPS navigation system.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116767277","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 : 2021-11-26DOI: 10.46300/91015.2021.15.12
P. Morano, B. Manganelli, F. Tajani
A suitable cap-rate is generally determined through an analogical process in order to estimate the value of any real estate through the capitalization of the incomes. The analogy relates to the risk and duration of similar investments. There are numerous methods to rationalize the valuation of the cap-rate. Appraisals have a certain degree of uncertainty in all these methods. This paper proposes a methodology which removes any uncertainty when evaluating the cap-rate. This is achieved through the combination of the formal logic of the Ellwood’s model and the Real Options Analysis.
{"title":"Real Options for Risk Analysis in Estimating the Capitalization Rate","authors":"P. Morano, B. Manganelli, F. Tajani","doi":"10.46300/91015.2021.15.12","DOIUrl":"https://doi.org/10.46300/91015.2021.15.12","url":null,"abstract":"A suitable cap-rate is generally determined through an analogical process in order to estimate the value of any real estate through the capitalization of the incomes. The analogy relates to the risk and duration of similar investments. There are numerous methods to rationalize the valuation of the cap-rate. Appraisals have a certain degree of uncertainty in all these methods. This paper proposes a methodology which removes any uncertainty when evaluating the cap-rate. This is achieved through the combination of the formal logic of the Ellwood’s model and the Real Options Analysis.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121545650","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 : 2021-11-26DOI: 10.46300/91015.2021.15.14
R. Bílková, H. Kopackova
Competition among e-commerce sites challenges their providers to look for new ways of customer attraction. Website quality can be included among the fundamental tools (along with the information and service quality) to attract and retain customers. In this article is described experiment covering establishment of e-shop as the competitor to producer website. New e-shop has defined terms, services are assured by producer therefore the only way how to compete is through website quality. During the reporting period producer applied discount actions, which allow us to determine the influence of the price and non-price competition.
{"title":"Enhancing E-commerce by Website Quality","authors":"R. Bílková, H. Kopackova","doi":"10.46300/91015.2021.15.14","DOIUrl":"https://doi.org/10.46300/91015.2021.15.14","url":null,"abstract":"Competition among e-commerce sites challenges their providers to look for new ways of customer attraction. Website quality can be included among the fundamental tools (along with the information and service quality) to attract and retain customers. In this article is described experiment covering establishment of e-shop as the competitor to producer website. New e-shop has defined terms, services are assured by producer therefore the only way how to compete is through website quality. During the reporting period producer applied discount actions, which allow us to determine the influence of the price and non-price competition.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132134684","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 : 2021-09-09DOI: 10.46300/91015.2021.15.9
Inmaculada Luengo López, Paloma Jimeno Sánchez-Patón, Pablo Aubert Girbal
This paper outlines the results evidenced by WellCo (GA nº: 769765), an European project funded by the European Commission within its H2020 programme under the personalised medicine call. The aim of this project was to develop and validate how ICT technologies may engage people to adopt healthier behaviour choices that improve their wellbeing status for as long as possible. Using data from wearable devices and AI-based algorithms, WellCo assesses the status of the user in terms of wellbeing and the risk of CVD. Using this information, WellCo develops an affective-aware coach that empowers users in the process of change of behaviour through the provision of interventions tailored to their current mood and life context. These motivational activities ranged from recommendations, goals to achieve, interactions with people in the social network, tips from experts and supporting groups suggested by the platform and adapted to their needs. The project has been validated with ageing people in Italy, Denmark and Spain. Despite the COVID-19 situation, results are very promising in terms of the possibilities that ICT technologies have for health promotion and set the basis for further research in this direction.
{"title":"Automatic Personalized Interventions for Behaviour Change Towards Healthier Lifestyle","authors":"Inmaculada Luengo López, Paloma Jimeno Sánchez-Patón, Pablo Aubert Girbal","doi":"10.46300/91015.2021.15.9","DOIUrl":"https://doi.org/10.46300/91015.2021.15.9","url":null,"abstract":"This paper outlines the results evidenced by WellCo (GA nº: 769765), an European project funded by the European Commission within its H2020 programme under the personalised medicine call. The aim of this project was to develop and validate how ICT technologies may engage people to adopt healthier behaviour choices that improve their wellbeing status for as long as possible. Using data from wearable devices and AI-based algorithms, WellCo assesses the status of the user in terms of wellbeing and the risk of CVD. Using this information, WellCo develops an affective-aware coach that empowers users in the process of change of behaviour through the provision of interventions tailored to their current mood and life context. These motivational activities ranged from recommendations, goals to achieve, interactions with people in the social network, tips from experts and supporting groups suggested by the platform and adapted to their needs. The project has been validated with ageing people in Italy, Denmark and Spain. Despite the COVID-19 situation, results are very promising in terms of the possibilities that ICT technologies have for health promotion and set the basis for further research in this direction.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121727630","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 : 2021-08-03DOI: 10.46300/91015.2021.15.8
C. C. Gîrdu, B. Lepădătescu
he laser beam is a source of radiation with concentrated energy. The characteristics of the laser beam (spot energy, focal spot diameter, spot temperature) are aspects theoretically researched in this paper. The intensity of the laser beam transmitted to the surface of the part has a Gaussian shape. A CO2 laser was used in the processing of parts from a HARDOX400 steel sheet with a thickness g = 8mm. The values of the cutting parameters were established by sample tests. An experimental design with 27 observations was analyzed. The width of the cutting slot at the straight profile was measured. Physical quantities derived from the cutting parameters and working parameters used were calculated. Spot energy, cost and interaction time were determined and evaluated using the mathematical model given by GRAPH. The research findings show that the best values of the factors studied converge to average values in minimizing Kerf.
{"title":"Experimental research methods for CO2 laser cutting of HARDOX400 steel","authors":"C. C. Gîrdu, B. Lepădătescu","doi":"10.46300/91015.2021.15.8","DOIUrl":"https://doi.org/10.46300/91015.2021.15.8","url":null,"abstract":"he laser beam is a source of radiation with concentrated energy. The characteristics of the laser beam (spot energy, focal spot diameter, spot temperature) are aspects theoretically researched in this paper. The intensity of the laser beam transmitted to the surface of the part has a Gaussian shape. A CO2 laser was used in the processing of parts from a HARDOX400 steel sheet with a thickness g = 8mm. The values of the cutting parameters were established by sample tests. An experimental design with 27 observations was analyzed. The width of the cutting slot at the straight profile was measured. Physical quantities derived from the cutting parameters and working parameters used were calculated. Spot energy, cost and interaction time were determined and evaluated using the mathematical model given by GRAPH. The research findings show that the best values of the factors studied converge to average values in minimizing Kerf.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126744153","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 : 2021-04-01DOI: 10.46300/91015.2021.15.7
Nassima Yamouni-Khelifi, K. Sadouni, M. Smialek, M. Zennaki
Requirements definition is the first step in the life cycle of a software system. Requirements are formulated as paragraphs of text and appear ambiguous, so they cannot be translated directly into code. For this reason, they are treated as secondary artifacts for software developers. This paper presents a model-driven based approach where requirements are treated as first-class citizens, and can contribute to the final code. In this approach, requirements are formulated as use case models with their textual scenarios, using a precise requirements language called RSL, allowing an automatic transition to executable Java code. The structure of the generated code follows the Model-View-Presenter (MVP) architectural pattern. The work focuses on the Model layer code, which is responsible for the persistence and storage of data in a database system.
{"title":"Database Access Layer Code Generation Directly from Use Case Scenarios","authors":"Nassima Yamouni-Khelifi, K. Sadouni, M. Smialek, M. Zennaki","doi":"10.46300/91015.2021.15.7","DOIUrl":"https://doi.org/10.46300/91015.2021.15.7","url":null,"abstract":"Requirements definition is the first step in the life cycle of a software system. Requirements are formulated as paragraphs of text and appear ambiguous, so they cannot be translated directly into code. For this reason, they are treated as secondary artifacts for software developers. This paper presents a model-driven based approach where requirements are treated as first-class citizens, and can contribute to the final code. In this approach, requirements are formulated as use case models with their textual scenarios, using a precise requirements language called RSL, allowing an automatic transition to executable Java code. The structure of the generated code follows the Model-View-Presenter (MVP) architectural pattern. The work focuses on the Model layer code, which is responsible for the persistence and storage of data in a database system.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123239476","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 : 2021-03-29DOI: 10.46300/91015.2021.15.4
M. Younes, F. Khodja, Riad Lakhdar Kherfene
Environmental legislation, with its increasing pressure on the energy sector to control greenhouse gases, is a driving force to reduce CO2 emissions, forced the power system operators to consider the emission problem as a consequential matter beside the economic problems, so the economic power dispatch problem has become a multi-objective optimization problem. This paper sets up an new hybrid algorithm combined in two algorithm, the harmony search algorithm and ant colony optimization (HSA-ACO), to solve the optimization with combined economic emission dispatch. This problem has been formulated as a multi-objective problem by considering both economy and emission simultaneously. The feasibility of the proposed approach was tested on 3-unit and 6-unit systems. The simulation results show that the proposed algorithm gives comparatively better operational fuel cost and emission in less computational time compared to other optimization techniques.
{"title":"Economic and Emission Dispatch Problems Using a New Hybrid Algorithm","authors":"M. Younes, F. Khodja, Riad Lakhdar Kherfene","doi":"10.46300/91015.2021.15.4","DOIUrl":"https://doi.org/10.46300/91015.2021.15.4","url":null,"abstract":"Environmental legislation, with its increasing pressure on the energy sector to control greenhouse gases, is a driving force to reduce CO2 emissions, forced the power system operators to consider the emission problem as a consequential matter beside the economic problems, so the economic power dispatch problem has become a multi-objective optimization problem. This paper sets up an new hybrid algorithm combined in two algorithm, the harmony search algorithm and ant colony optimization (HSA-ACO), to solve the optimization with combined economic emission dispatch. This problem has been formulated as a multi-objective problem by considering both economy and emission simultaneously. The feasibility of the proposed approach was tested on 3-unit and 6-unit systems. The simulation results show that the proposed algorithm gives comparatively better operational fuel cost and emission in less computational time compared to other optimization techniques.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133708286","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: 10.46300/91015.2020.14.25
O. Atef, A. B. Nassif, Manar AbuTalib, Qassim Nassir
Covid19 is a newly discovered corona virus that has been officially announced as a pandemic by the World Health Organization in March 2020. It is a new virus in the medical field that has no specific treatment and no vaccines until this moment. Covid19 is spreading very fast as the medical systems over the world are not able to hospitalize all the patients which lead into a significant increase in the number of the virus death. This work uses machine learning models to predict which patient has a higher probability of death. Three different algorithms such as multilayer perceptron, support vector machine and K nearest neighbor were used in this work. The accuracies achieved were between 92% to 100% with MLP, SVM and KNN. SVM achieved the highest accuracy. The models were evaluated through precision, accuracy, recall and F measure.
{"title":"Death/Recovery Prediction for Covid-19 Patients using Machine Learning","authors":"O. Atef, A. B. Nassif, Manar AbuTalib, Qassim Nassir","doi":"10.46300/91015.2020.14.25","DOIUrl":"https://doi.org/10.46300/91015.2020.14.25","url":null,"abstract":"Covid19 is a newly discovered corona virus that has been officially announced as a pandemic by the World Health Organization in March 2020. It is a new virus in the medical field that has no specific treatment and no vaccines until this moment. Covid19 is spreading very fast as the medical systems over the world are not able to hospitalize all the patients which lead into a significant increase in the number of the virus death. This work uses machine learning models to predict which patient has a higher probability of death. Three different algorithms such as multilayer perceptron, support vector machine and K nearest neighbor were used in this work. The accuracies achieved were between 92% to 100% with MLP, SVM and KNN. SVM achieved the highest accuracy. The models were evaluated through precision, accuracy, recall and F measure.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134389614","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: 10.46300/91015.2020.14.23
M. Lakhoua
This paper presents the need for structured analysis and real time (SA-RT) method of control-command applications in a thermal power plant (TPP) using a supervisory control and data acquisition systems (SCADA). Then, the architecture of a SCADA system in a TPP in Tunisia is presented. A significant example of a control-command application in a TPP in Tunisia is presented. It is about the natural gas station of the TPP. Then an application of a structured analysis method in a TPP, generally used in industry, on the basis of the SA-RT formalism is presented. In fact, different modules are presented: Context Diagram, Data Flows Diagram, Control Flows Diagram, State Transition Diagram, Timing Specifications and Requirements Dictionary. Finally, this functional and operational analysis allows us to assist the different steps of the specification, the programming and the configuration of a new tabular in a SCADA system of the natural gas station.
{"title":"Modeling and Supervision of Natural Gas Station in a Thermal Power Plant","authors":"M. Lakhoua","doi":"10.46300/91015.2020.14.23","DOIUrl":"https://doi.org/10.46300/91015.2020.14.23","url":null,"abstract":"This paper presents the need for structured analysis and real time (SA-RT) method of control-command applications in a thermal power plant (TPP) using a supervisory control and data acquisition systems (SCADA). Then, the architecture of a SCADA system in a TPP in Tunisia is presented. A significant example of a control-command application in a TPP in Tunisia is presented. It is about the natural gas station of the TPP. Then an application of a structured analysis method in a TPP, generally used in industry, on the basis of the SA-RT formalism is presented. In fact, different modules are presented: Context Diagram, Data Flows Diagram, Control Flows Diagram, State Transition Diagram, Timing Specifications and Requirements Dictionary. Finally, this functional and operational analysis allows us to assist the different steps of the specification, the programming and the configuration of a new tabular in a SCADA system of the natural gas station.","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116516330","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: 10.46300/91015.2020.14.24
Israa Y. AbuShawish, S. Ghunaim, A. B. Nassif, Mohammad Azzeh
Traffic congestion is a serious problem on every roadway and streets in many cities around the world. This systematic review is devoted to analyze research papers that deal with the optimization of traffic signal timing. The main objective of such optimization is maximizing the number of the vehicles leaving the network in a given period of time. This will lead to enhancing the performance of the road system. In this work, we researched the most recent metaheuristic optimized traffic light control techniques. It was shown that integrating optimization techniques in the field of traffic lights control had a great impact on the performance of traffic monitoring. During our research, we found that the most used method was the Genetic Algorithm (GA).
{"title":"Metaheuristic Techniques in Optimizing Traffic Control Lights: A Systematic Review","authors":"Israa Y. AbuShawish, S. Ghunaim, A. B. Nassif, Mohammad Azzeh","doi":"10.46300/91015.2020.14.24","DOIUrl":"https://doi.org/10.46300/91015.2020.14.24","url":null,"abstract":"Traffic congestion is a serious problem on every roadway and streets in many cities around the world. This systematic review is devoted to analyze research papers that deal with the optimization of traffic signal timing. The main objective of such optimization is maximizing the number of the vehicles leaving the network in a given period of time. This will lead to enhancing the performance of the road system. In this work, we researched the most recent metaheuristic optimized traffic light control techniques. It was shown that integrating optimization techniques in the field of traffic lights control had a great impact on the performance of traffic monitoring. During our research, we found that the most used method was the Genetic Algorithm (GA).","PeriodicalId":158702,"journal":{"name":"International Journal of Systems Applications, Engineering & Development","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133822764","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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