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

{"title":"Dual Decomposition Methods for Nonlinear Resource Allocation Problems in Telecommunication Networks","authors":"I. Konnov, A. Kashuba, E. Laitinen","doi":"10.1109/MCSI.2017.42","DOIUrl":"https://doi.org/10.1109/MCSI.2017.42","url":null,"abstract":"We consider problems of optimal resource allocation in zonal telecommunication networks with many users. In the simplest formulation the network manager aims to distribute some homogeneous resource (say bandwidth) among users within one zone. We assume strictly convex charge and convex quadratic fee functions and present combined dual type solution methods. Next, we consider a more general problem for a multizonal wireless communication network with common capacity constraints. We obtain a convex optimization problem involving two kinds of constraints. By using the dual Lagrangian method with respect to the capacity constraint, we suggest to reduce the initial problem to a single-dimensional optimization problem, but calculation of the cost function value leads to independent solution of zonal problems, which coincide with the previous single region problem. Some results of computational experiments confirm the applicability of the new methods.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"19 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":"125585746","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":"The Complexity Analysis of Voiced and Unvoiced Speech Signal Based on Sample Entropy","authors":"Guiqi Sun, Z. Fan, N. Mastorakis, S. Kaminaris, X. Zhuang","doi":"10.1109/MCSI.2017.14","DOIUrl":"https://doi.org/10.1109/MCSI.2017.14","url":null,"abstract":"The difference of signal complexity for voiced/unvoiced speech is studied. The sample entropy is estimated for a group of single phoneme pronunciations. The experimental data indicates that voiced and unvoiced pronunciations are different in signal complexity, which proves the effectiveness of the sample entropy feature for voiced/unvoiced classification.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"212 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":"125739106","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":"Computer Simulation of Interaction of Lysine Dendrimer with Stack of Amyloid Peptides","authors":"I. Neelov, D. Khamidova, E. Popova, F. Komilov","doi":"10.1109/MCSI.2017.39","DOIUrl":"https://doi.org/10.1109/MCSI.2017.39","url":null,"abstract":"In present paper, molecular dynamics is used to study amyloid fibril destruction by oppositely charged dendrimers. Dendrimers are often used for delivery of drugs and biological molecules. They also could be used as antibacterial, antiviral and antiamyloid agents. Since lysine dendrimers are less toxic than conventional synthetic dendrimers), we chose them and studied system consisting of 3rd generation dendrimers and stack of 16 short amyloid peptides in water. It was shown that lysine dendrimer destroys amyloid stack and forms stable complex with amyloid peptides. We investigated the structures of the complex in equilibrium state and obtained that peptides in complex stay mainly on the surface of dendrimer and do not penetrate into it. The data can be used in future in treatment of Alzheimer's disease, since it is believed that one of the reasons for its occurrence is the formation of amyloid fibrils.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"22 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":"134284503","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":"A Method for the Control of the Coanda Effect","authors":"F. Frunzulică, O. Preotu, A. Dumitrache, M. Cojocaru","doi":"10.1109/MCSI.2017.25","DOIUrl":"https://doi.org/10.1109/MCSI.2017.25","url":null,"abstract":"In this paper, using Computational Fluid Dynamics (CFD), we investigate a passive flow control system using a thin channel, a channel that connects two different pressure points on a convex surface. The tendency to redistribute the pressure on the surface will maintain the jet attached to the convex surface, thus enhancing the Coandã effect. Numerical results on two-dimensional and three-dimensional configurations show that the jet can be kept attached to the surface for a longer distance and deflected, in our simulations, with approx. 8° towards the direction of the jet in the configuration without channel.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"34 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":"129230136","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":"Determining Traffic Levels in Cities Using Google Maps","authors":"P. Pokorný","doi":"10.1109/MCSI.2017.33","DOIUrl":"https://doi.org/10.1109/MCSI.2017.33","url":null,"abstract":"This article describes how to determine live traffic levels in cities using Google Maps. Google Maps offers a program interface that allows one to graphically visualize a custom configuration of a selected map in any web-browser. A transport layer can be added to this configuration, which can be symbolized by four different colors on major thoroughfares depending on current traffic flow levels and nodes. The main goal was to define this level of traffic as a numerical value that can be subsequently processed. To begin with, users need to convert these maps to HTML5 canvas to create individual canvases because Google Maps are represented by complex div tags in a user web-page. From canvas, a simple algorithm can read the pixels at any coordinates and then evaluate their colors. The whole solution is then implemented, using JavaScript programming language and designed to be used in real environments.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"2 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":"125513974","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":"Virtual Simulator Ergo Truck of Crew Operations During the Removal of Equipment from Fire Trucks","authors":"T. Nowicki, Łukasz Matuszelański, Jaroslaw Koszela, R. Wantoch-Rekowski","doi":"10.1109/MCSI.2017.52","DOIUrl":"https://doi.org/10.1109/MCSI.2017.52","url":null,"abstract":"This work presents the construction and implementation of a virtual simulator for the ergonomic study of the firemen’ performance at the time of removal of firemen equipment from fire truck. The problem is discussed in order to achieve the best value of ergonomic indicators for firemen during anti-fire action. The equipment can be located on the fore truck in a different ways. We are looking for the best way to do it from the point of view of ergonomics. Firefighters must equipment in a short time, causing high physical strain on their bodies. Virtual simulation will allow us to measure the physical loads of firemen' bodies in different types of actions without real firemen activity. It is possible to receive several permissible solutions and then evaluate them in a virtual simulation environment. Then it can then be taken into account a number of additional factors that are important for fireman and ergonomics. The basic modules of the simulator and their properties are shown. Selected sequence views of simulation experiments were also illustrated.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"85 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":"121146403","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":"Potential of Epidemiological Imaging for Image Analysis and Visualization Applications: A Brief Review","authors":"T. Ivanovska, S. Herzog, José M. Flores, P. Ciet, L. Linsen, L. Duijts, H. Tiddens, H. Vőlzke, Annette Peters, F. Worgotter","doi":"10.1109/MCSI.2017.9","DOIUrl":"https://doi.org/10.1109/MCSI.2017.9","url":null,"abstract":"Recently, large population-based studies gain increasing focus in the research community. Epidemiological studies acquire numerous data by means of questionnaires and examinations. Many of these studies also collect imaging data, for instance, magnetic resonance imaging or ultrasonography from hundreds or even thousands of participants. Here, we consider several on-going epidemiological studies conducted in Europe as well as challenges of subsequent image analysis and visualization of heterogeneous data, which were obtained within these studies. In particular, the main focus is on airway extraction tasks and the visual analytics problems. Available solutions and future directions for computer science specialists are presented and analyzed in terms of user-friendliness, speed, and efficiency.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"150 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":"130860990","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":"Application of Mechanics of Surface Growth to Problems of Additive Manufacturing","authors":"A. V. Manzhirov","doi":"10.1109/MCSI.2017.22","DOIUrl":"https://doi.org/10.1109/MCSI.2017.22","url":null,"abstract":"Additive Manufacturing (AM) technologies are an exciting area of the modern industry and have applications in instrumentation, engineering, medicine, electronics, aerospace industry, and other fields. AM enables cost-effective production of customized geometry and parts by direct fabrication from 3D data and mathematical models. They include electrolytic deposition, thermal and laser-based 3D printing, stereolithography, 3D-IC fabrication technologies, etc. and are booming nowadays owing to their ability to fabricate products with unique characteristics that cannot be made with traditional fabrication techniques. Despite much progress in the area of AM technologies, problems of mechanical design and analysis for AM fabricated parts yet remain to be solved. So far, three main problems can be isolated: (i) the onset of residual stresses, which inevitably occur in the manufacturing process and can lead to failure of the parts, (ii) the distortion of the final shape of AM fabricated parts, and (iii) the development of technical and technological solutions aimed at improving existing AM technologies and creating new ones. This paper deals with an approach to modeling AM processes in solid.Additive Manufacturing (AM) technologies are an exciting area of the modern industry and have applications in instrumentation, engineering, medicine, electronics, aerospace industry, and other fields. AM enables cost-effective production of customized geometry and parts by direct fabrication from 3D data and mathematical models. They include electrolytic deposition, thermal and laser-based 3D printing, stereolithography, 3D-IC fabrication technologies, etc. and are booming nowadays owing to their ability to fabricate products with unique characteristics that cannot be made with traditional fabrication techniques. Despite much progress in the area of AM technologies, problems of mechanical design and analysis for AM fabricated parts yet remain to be solved. So far, three main problems can be isolated: (i) the onset of residual stresses, which inevitably occur in the manufacturing process and can lead to failure of the parts, (ii) the distortion of the final shape of AM fabricated parts, and (iii) the development of technical and technological solutions aimed at improving existing AM technologies and creating new ones. This paper deals with an approach to modeling AM processes in solid.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"28 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":"133068673","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":"H∞ Norm Based Design of Functional Observers","authors":"D. Krokavec, A. Filasová","doi":"10.1109/MCSI.2017.56","DOIUrl":"https://doi.org/10.1109/MCSI.2017.56","url":null,"abstract":"This paper considers the problem of designing an observer dynamics of one class of state functional observers in linear systems. By the proposed method, the design problem is parameterized in terms of linear matrix inequalities using H∞ norm principle. Related to the control input estimation, the design steps are revealed in the example to illustrate a new point of view for the design.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"106 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":"133960654","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":"Competition of Motor Controllers Using a Simplified Robot Leg: PID vs Fuzzy Logic","authors":"I. Kecskés, E. Burkus, Z. Király, Á. Odry, P. Odry","doi":"10.1109/MCSI.2017.16","DOIUrl":"https://doi.org/10.1109/MCSI.2017.16","url":null,"abstract":"This research presents a simulation and optimization environment for developing motor controllers. There are various type of controllers which may provide better or worse performance for the intended use. Our fuzzy controller was developed and optimized in order to ensure better control performance and to protect the walking robot's electro-mechanical equipment against high peaks or jerks. This fuzzy controller was compared to a simple PID controller to show its advantage. Both controllers were optimized and competed on the same test situations. The control performance robustness against the motor and load parameters are evaluated. A simplified robot leg model was used to ensure a realistic load for the motor driving, instead of the full robot dynamic model because of its fast calculation. The developed fuzzy controller resulted better performance and robustness compared to the optimized PID.","PeriodicalId":113351,"journal":{"name":"2017 Fourth International Conference on Mathematics and Computers in Sciences and in Industry (MCSI)","volume":"25 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":"117073472","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}