2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)最新文献

Operating Optimization of the Equipment and Machines Using Imposed Lifespan Between Maintenance 运行优化的设备和机器使用寿命之间的维护

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.24

Cristian Silviu Simionescu, A. Barda, O. Diaconescu

{"title":"Operating Optimization of the Equipment and Machines Using Imposed Lifespan Between Maintenance","authors":"Cristian Silviu Simionescu, A. Barda, O. Diaconescu","doi":"10.1109/MCSI.2017.24","DOIUrl":"https://doi.org/10.1109/MCSI.2017.24","url":null,"abstract":"One of the most important problem of the operating machines is the accidental failures. These failures generates stoppages that disturb the technological flow by introducing delays. The present paper proposes a method to control the working without failure for any equipment or machine. More exactly, each element is designed with an imposed lifespan between maintenance interventions. In these conditions, it is possible to plan precise maintenance intervention stoppages, known beforehand and with minimum stoppage time. In order to achieve these objectives, there are several stages, namely: - Identification and design of all parts, functional role as well as lifespan; - Analyzing lifespan information and setting the optimal operating time for each piece to ensure a minimum number of stoppages to restore working parameters; Re-designing the parts (where applicable) in order to change the lifespan as previously defined. This operation will involve changes in shape or material, with immediate impact, to increase the cost of manufacturing the parts/equipment. This immediate increase is, in the long run, a significant decrease in maintenance and operating costs of the equipment. The proposed method leads to an optimum operation, a maximumworking time without disorder or unpredicted stoppages. The paper analyses a case study which highlights the efficiency of the proposed method.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124264468","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}

引用次数: 1

Adaptive Sampling Technique for Computer Network Traffic Parameters Using a Combination of Fuzzy System and Regression Model 模糊系统与回归模型相结合的计算机网络流量参数自适应采样技术

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.43

A. Salama, R. Saatchi, D. Burke

引用次数: 7

Valuation of Options Under Heston Stochastic Volatility Model Using Wavelets 基于小波的Heston随机波动模型下的期权估值

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.12

D. Cerná, V. Finěk

引用次数: 0

Aspects Regarding Airplane Propeller Flow Field Mathematical Model 关于飞机螺旋桨流场数学模型的几个问题

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.57

C. Rotaru, G. Răducanu

引用次数: 0

Acceleration of Grammatical Evolution with Multiple Chromosome by Using Stochastic Schemata Exploiter 利用随机模式挖掘器加速多染色体语法演化

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.40

E. Kita, Y. Zuo, H. Sugiura, T. Mizuno

{"title":"Acceleration of Grammatical Evolution with Multiple Chromosome by Using Stochastic Schemata Exploiter","authors":"E. Kita, Y. Zuo, H. Sugiura, T. Mizuno","doi":"10.1109/MCSI.2017.40","DOIUrl":"https://doi.org/10.1109/MCSI.2017.40","url":null,"abstract":"Grammatical Evolution (GE), which is one of evolutionary computations, is designed to find the function or the executable program or program fragment that satisfies the design objective. Candidate solutions are described in bit-string or the set of decimal numbers. The translation process from the genotype (bit-string) to the phenotype (function or program) is defined in the list of the translation rules. Candidate solutions are evolved according to the Simple Genetic Algorithm. There are three issues in Grammatical Evolution process; genotype definition, translation rules, and search algorithm. Grammatical Evolution with Multiple Chromosomes (GEMC) is designed for improving the genotype definition. The aim of this study is to improve the search algorithm from Simple Genetic Algorithm to Stochastic Schemata Exploiter for improving the convergence speed. The proposal algorithm “Grammatical Evolution with Multiple Chromosome by Using Stochastic Schemata Exploiter (GEMC-SSE)” is applied for the symbolic regression problem in order to discuss the search performance. The numerical results show that the proposal algorithm has faster convergence speed than the original GEMC.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116331030","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}

引用次数: 1

Convergence of Crank-Nicolson Scheme Combined with Wavelet Discretization for the Black-Scholes Equation 结合小波离散的Crank-Nicolson格式对Black-Scholes方程的收敛性

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.53

V. Finěk

引用次数: 2

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.46

M. Chmielewski, Małgorzata Paciorkowska, Maciej Kiedrowicz

{"title":"A Semantic Similarity Evaluation Method and a Tool Utilised in Security Applications Based on Ontology Structure and Lexicon Analysis","authors":"M. Chmielewski, Małgorzata Paciorkowska, Maciej Kiedrowicz","doi":"10.1109/MCSI.2017.46","DOIUrl":"https://doi.org/10.1109/MCSI.2017.46","url":null,"abstract":"This paper discusses a semantic similarity evaluation method within semantic models represented as ontologies or an instance bases. The capabilities of the method can be used for semantic pattern recognition within knowledge bases, which can be utilised by analytical tools especially in the security domain. The specificity of security applications requires methods for analysis of hidden, in direct, comprehensive and versatile data in search for new knowledge. Proposed method and its implementation in form of ETOSE plugin serves as an analytical process evaluating instance bases. The mechanisms has been designed to operate as a data flow interceptor, collecting the data and transforming them into instances expressed in a specific domain ontology (set of ontology modules). After such migration ETOSE plugin performs evaluation of instance base and provides the analyst mechanisms for identification of hidden associations and patterns. The quantitative approach has been applied in financial fraud identification tasks where certain templates of behaviour and associations can be described. Proposed method and tool utilize structural and lexicon comparison of compared ontologies in order to deliver multicriteria evaluation of concepts, relationships and indirectly implemented axioms. The paper demonstrates the theoretical side of designed method as well as practical examples, developed ontologies and analytical environment application.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131664195","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}

引用次数: 6

Simulation of the Aerodynamics and Combustion of a Turbulent Pulverized-Coal Flame 湍流煤粉火焰的空气动力学与燃烧模拟

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.23

A. A., B. S., Yergaliyeva A., Nugymanova A., B. Symbat, M. V., Gabitova Z., Shortanbayeva Zh.

{"title":"Simulation of the Aerodynamics and Combustion of a Turbulent Pulverized-Coal Flame","authors":"A. A., B. S., Yergaliyeva A., Nugymanova A., B. Symbat, M. V., Gabitova Z., Shortanbayeva Zh.","doi":"10.1109/MCSI.2017.23","DOIUrl":"https://doi.org/10.1109/MCSI.2017.23","url":null,"abstract":"Over the past decades, the consumption rates of fossil energy resources has not declined, despite fundamental changes in the political, economic and social structures of society. According to experts, the share of coal in the global fuel and energy balance is more than 27%, thanks to which almost 45% of the world's electricity is generated. For each country in the world, the structure of the national energy balance is determined by the availability of its own sources of fuel and energy resources. In the Republic of Kazakhstan, coal reserves are estimated at 30 billion tons, which is 3.4% of the world's coal reserves. However, Kazakhstan's coal is characterized by low calorific value and high ash content, its combustion leads to the formation and delivery of large quantities of pollutants in air, soil and water. Pollution of the atmosphere is one of the global problems of mankind, whose solution is to optimize the combustion process and realization stringent environmental requirements for specific emissions of harmful substances with waste gases. To solve this difficult task, there is a need to improve equipment, introduce new technologies and use alternative methods for organizing a combustion process, the basis of which is to study the processes of heat and mass transfer in the presence of combustion. Irreplaceable powerful method of theoretical research of currents at availability of burning is numerical modelling. The results of a three-dimensional numerical simulation of aerodynamics, temperature flow and carbon oxides are presented. Studies have been carried out for a pulverized-angle flame of various dispersity. A comparative analysis of the obtained results with the results of the field experiment is carried out. The obtained results will allow choosing the optimal variant of the combustion process organization in order to increase its efficiency and reduce the negative impact on the environment.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115545575","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}

引用次数: 5

Applications of Multi-Physics Modelling for Simulations of Thermo-Elastic-Plastic Materials 多物理场建模在热弹塑性材料模拟中的应用

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.64

E. Murashkin, E. Dats

引用次数: 1

Efficient Location-Aware Scheduling of Maintenance Tasks in Shop Floors 车间维护任务的高效位置感知调度

2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI) Pub Date : 2017-08-01 DOI: 10.1109/MCSI.2017.28

S. Zikos, S. Krinidis, D. Ioannidis, D. Tzovaras, K. Ziazios, I. Metaxa

{"title":"Efficient Location-Aware Scheduling of Maintenance Tasks in Shop Floors","authors":"S. Zikos, S. Krinidis, D. Ioannidis, D. Tzovaras, K. Ziazios, I. Metaxa","doi":"10.1109/MCSI.2017.28","DOIUrl":"https://doi.org/10.1109/MCSI.2017.28","url":null,"abstract":"In this paper, the core functionalities of a state-of-the-art Human Resources (HR) optimization engine of a decision support system (DSS) are presented. The main objective is to schedule maintenance tasks and assign them to human resources. Each task is scheduled and assigned to the most suitable employee based on multiple criteria (such as trade, workload, etc.) by using static and dynamic information. A heuristic branch and bound static scheduling method which creates the initial work schedule given a set of tasks and a list of employees is presented. Furthermore, a dynamic scheduling method which schedules arriving critical tasks in real-time has been extended in order to utilize additional information, such as the position and the availability of assets and employees. Short response times are important when a corrective maintenance task of high priority has to be handled as soon as possible; therefore the distance between an employee and the task’s location is considered. Employees are equipped with sensors for monitoring their current location in real-time. In case sensors are not available, approximate localization is performed indirectly based on context information. A case study demonstrates how the approach works when a critical new task has to be performed.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129687996","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}

引用次数: 3