Pub Date : 2014-05-22DOI: 10.1109/AQTR.2014.6857929
T. Colosi, M. Ungureșan, V. Muresan
In this paper is presented a method for the numerical simulation of the distributed parameter processes, based on the matrix of partial derivatives of the state vector (Mpdx), associated with Taylor series. Depending on the process type, the numerical simulation algorithm can be run using Cartesian coordinates, spherical coordinates, cylindrical coordinates or spiral coordinates. Direct applications of this method are the modeling-simulation and control of the technical processes from the isotope separation domain.
{"title":"Numerical simulation of distributed parameter processes using Cartesian, spherical, cylindrical and spiral coordinates","authors":"T. Colosi, M. Ungureșan, V. Muresan","doi":"10.1109/AQTR.2014.6857929","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857929","url":null,"abstract":"In this paper is presented a method for the numerical simulation of the distributed parameter processes, based on the matrix of partial derivatives of the state vector (Mpdx), associated with Taylor series. Depending on the process type, the numerical simulation algorithm can be run using Cartesian coordinates, spherical coordinates, cylindrical coordinates or spiral coordinates. Direct applications of this method are the modeling-simulation and control of the technical processes from the isotope separation domain.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115074091","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857846
Iliya Tronkov
W-tree is a natural generalization of B+-tree. Operations in B+-tree are executed synchronously (one by one), while in W-tree, operations are executed asynchronously (in groups). When an operation enters B+-tree it ”sinks” up to its respective leaf. When an operation enters W-tree, it ”stops” in the first node which is not overloaded. Operations in W-tree accumulate in its internal nodes. When a certain internal node overloads with operations, the branch with the greatest number of operations adjacent to it is selected and they are ”poured down” the tree. The W-tree data structure solves the problem of speed degradation when indexing records with random keys.
{"title":"WaterfallTree — External indexing data structure","authors":"Iliya Tronkov","doi":"10.1109/AQTR.2014.6857846","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857846","url":null,"abstract":"W-tree is a natural generalization of B<sup>+</sup>-tree. Operations in B<sup>+</sup>-tree are executed synchronously (one by one), while in W-tree, operations are executed asynchronously (in groups). When an operation enters B<sup>+</sup>-tree it ”sinks” up to its respective leaf. When an operation enters W-tree, it ”stops” in the first node which is not overloaded. Operations in W-tree accumulate in its internal nodes. When a certain internal node overloads with operations, the branch with the greatest number of operations adjacent to it is selected and they are ”poured down” the tree. The W-tree data structure solves the problem of speed degradation when indexing records with random keys.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114964845","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857907
C. Muresan, O. Prodan
Several important domains, such as the aerospace industry, are confronted with problems related to vibration. The solutions for reducing these vibrations are numerous, but are limited to a large number of passive methods, while the active solutions involve classical and intelligent control techniques. The present paper proposes a fractional order PD controller, for which the control parameters are computed in order to directly limit the vibrations at the resonance frequencies. The case study consists in a beam containing smart sensors and actuators using piezoelectric materials. The simulation results, considering both free and forced vibrations responses of the smart beam, show that the proposed method is simple and leads to an improvement of the closed loop behavior.
{"title":"Vibration suppression in smart structures using fractional order PD controllers","authors":"C. Muresan, O. Prodan","doi":"10.1109/AQTR.2014.6857907","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857907","url":null,"abstract":"Several important domains, such as the aerospace industry, are confronted with problems related to vibration. The solutions for reducing these vibrations are numerous, but are limited to a large number of passive methods, while the active solutions involve classical and intelligent control techniques. The present paper proposes a fractional order PD controller, for which the control parameters are computed in order to directly limit the vibrations at the resonance frequencies. The case study consists in a beam containing smart sensors and actuators using piezoelectric materials. The simulation results, considering both free and forced vibrations responses of the smart beam, show that the proposed method is simple and leads to an improvement of the closed loop behavior.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132969984","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857880
Ioana Barbantan, R. Potolea
Topic extraction from Electronic Health Records is a sensitive step of the knowledge extraction process. As the meaning of a discourse can be completely distorted by negations, the correct identification of terms vs negated terms is mandatory. Our work is an attempt of automated negation identification in unstructured health records. We analyzed a corpus of medical documents containing 5103 sentences and we found that while adverbs have a distribution of 3%, the negation covers almost 2% of the words used in the corpus, justifying an in depth analysis of negation. The main contribution of the paper addresses the existing drawback of negation identification approaches in the literature that do not consider negation represented with negation prefixes. In this paper we address the tasks of syntactic and morphologic negation identification. In order to identify morphologic negation we propose the PreNex algorithm that consists in breaking down the terms into prefix and root word and the analysis of the root's validity using additional available resources (WordNet). The syntactic negation identification relies on a pattern matching approach where the negated concepts are identified based on a predefined Ust of negation identifiers. The results we obtained are promising and ensure a reliable negation identification approach for medical documents. We report a precision of 92.62% and recall of 93.60% in case of the morphologic negation identification and an overall performance in the morphologic and syntactic negation identification of 95.96% precision and 94.23% recall.
{"title":"Exploiting word meaning for negation identification in electronic health records","authors":"Ioana Barbantan, R. Potolea","doi":"10.1109/AQTR.2014.6857880","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857880","url":null,"abstract":"Topic extraction from Electronic Health Records is a sensitive step of the knowledge extraction process. As the meaning of a discourse can be completely distorted by negations, the correct identification of terms vs negated terms is mandatory. Our work is an attempt of automated negation identification in unstructured health records. We analyzed a corpus of medical documents containing 5103 sentences and we found that while adverbs have a distribution of 3%, the negation covers almost 2% of the words used in the corpus, justifying an in depth analysis of negation. The main contribution of the paper addresses the existing drawback of negation identification approaches in the literature that do not consider negation represented with negation prefixes. In this paper we address the tasks of syntactic and morphologic negation identification. In order to identify morphologic negation we propose the PreNex algorithm that consists in breaking down the terms into prefix and root word and the analysis of the root's validity using additional available resources (WordNet). The syntactic negation identification relies on a pattern matching approach where the negated concepts are identified based on a predefined Ust of negation identifiers. The results we obtained are promising and ensure a reliable negation identification approach for medical documents. We report a precision of 92.62% and recall of 93.60% in case of the morphologic negation identification and an overall performance in the morphologic and syntactic negation identification of 95.96% precision and 94.23% recall.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133674481","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857931
M. Truşcă, S. Albert, M. Soran, C. Varodi, F. Farcas, M.-L. Ungurecan
It is necessary to maintain the constant parameters in different systems and processes like computer grid, isotope separation plants etc. The temperature, power consumption, voltage and current are very important parameters of all processes. In this paper it was developed an application and a device based on electronic board called "AVR_NET_IO" and interconnected with a digital electric meter model UPT-210 and a computer with an own software. This application called "Data Logger UPT210” is used to monitor the electrical parameters and temperatures from different systems and plants from INCDTIM.
{"title":"Application for some parameters monitoring in installation for isotopes separation","authors":"M. Truşcă, S. Albert, M. Soran, C. Varodi, F. Farcas, M.-L. Ungurecan","doi":"10.1109/AQTR.2014.6857931","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857931","url":null,"abstract":"It is necessary to maintain the constant parameters in different systems and processes like computer grid, isotope separation plants etc. The temperature, power consumption, voltage and current are very important parameters of all processes. In this paper it was developed an application and a device based on electronic board called \"AVR_NET_IO\" and interconnected with a digital electric meter model UPT-210 and a computer with an own software. This application called \"Data Logger UPT210” is used to monitor the electrical parameters and temperatures from different systems and plants from INCDTIM.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116222139","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857830
M. Lashin, Abdullah T. Elgammal, A. Ramadan, A. Abouelsoud, Samy F. M. Assal, A. Abo-Ismail
This paper presents a comparative study between two control approaches; an Exact FeedForward Linearization controller developed by fuzzy-gain scheduling and sliding mode controller based on Ackermann and Utkin method. For the later one the sliding surface dynamics are determined explicitly without transforming to the sliding mode canonical form. The benefits of this study are demonstrated practically on a well known benchmark control problem, Magnetic ball levitation system (Maglev), and the performances of both controllers are compared. Important control issues such as tracking ability, control effort, steady state error and noise rejection are experimentally investigated.
{"title":"Fuzzy-based gain scheduling of Exact FeedForward Linearization control and sliding mode control for magnetic ball levitation system: A comparative study","authors":"M. Lashin, Abdullah T. Elgammal, A. Ramadan, A. Abouelsoud, Samy F. M. Assal, A. Abo-Ismail","doi":"10.1109/AQTR.2014.6857830","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857830","url":null,"abstract":"This paper presents a comparative study between two control approaches; an Exact FeedForward Linearization controller developed by fuzzy-gain scheduling and sliding mode controller based on Ackermann and Utkin method. For the later one the sliding surface dynamics are determined explicitly without transforming to the sliding mode canonical form. The benefits of this study are demonstrated practically on a well known benchmark control problem, Magnetic ball levitation system (Maglev), and the performances of both controllers are compared. Important control issues such as tracking ability, control effort, steady state error and noise rejection are experimentally investigated.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114428960","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857920
I. Stoian, D. Capatina, S. Ignat, O. Ghiran
In the field of water management it operate with hydrologic, hydraulic models, and the river basin GIS component, that take into account the real-time measured parameters, and climate prognosis. The SCADA system associated to a river basin, by acquired historical data, constitutes the support for models calibration and validation, by their training on representative data sets, with the purpose of establishing model associated parameters. But not all acquired data from sensors is qualified for interaction with the models. These must pass through filtering, compensation, plausibility processes. The data stored in databases complies with these requirements, being validated when loaded into historical databases or by post-processing. For managing some dynamic conditions, alerts or certain extreme conditions - floods or prolonged drought - the models have to be shifted during running, depending on instant values of process parameters - run-time models. The selection of the most suitable model for on-line erroneous data may result in disastrous results. Therefore, at the level of on-line data there is required rapid checking, involving specialized processors or demanding software applications, running on parallel threads. Presented paper achieves SCADA data analysis with the purpose of make them compatible with predictive models, for ensuring of decisional support mechanisms, that sustain proactive measures, by proposing o set of solutions regarding their efficient usage.
{"title":"SCADA and modeling in water management","authors":"I. Stoian, D. Capatina, S. Ignat, O. Ghiran","doi":"10.1109/AQTR.2014.6857920","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857920","url":null,"abstract":"In the field of water management it operate with hydrologic, hydraulic models, and the river basin GIS component, that take into account the real-time measured parameters, and climate prognosis. The SCADA system associated to a river basin, by acquired historical data, constitutes the support for models calibration and validation, by their training on representative data sets, with the purpose of establishing model associated parameters. But not all acquired data from sensors is qualified for interaction with the models. These must pass through filtering, compensation, plausibility processes. The data stored in databases complies with these requirements, being validated when loaded into historical databases or by post-processing. For managing some dynamic conditions, alerts or certain extreme conditions - floods or prolonged drought - the models have to be shifted during running, depending on instant values of process parameters - run-time models. The selection of the most suitable model for on-line erroneous data may result in disastrous results. Therefore, at the level of on-line data there is required rapid checking, involving specialized processors or demanding software applications, running on parallel threads. Presented paper achieves SCADA data analysis with the purpose of make them compatible with predictive models, for ensuring of decisional support mechanisms, that sustain proactive measures, by proposing o set of solutions regarding their efficient usage.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127710575","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857905
C. Pinto
We study peculiar dynamical patterns of a fractional derivative of complex-order network. The network consists of two rings of cells coupled through a `buffer' cell, with Z3 × Z5 symmetry group. Each cell is modeled by the Chen oscillator. Numerical simulations expose interesting dynamical features, such as equilibria, periodic solutions and relaxation oscillations, for distinct value of the real part of the fractional derivative of complex-order. Further work is needed to enhance our knowledge of the underlying dynamics of the network.
{"title":"Preliminary results on peculiar patterns in fractional coupled oscillators","authors":"C. Pinto","doi":"10.1109/AQTR.2014.6857905","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857905","url":null,"abstract":"We study peculiar dynamical patterns of a fractional derivative of complex-order network. The network consists of two rings of cells coupled through a `buffer' cell, with Z3 × Z5 symmetry group. Each cell is modeled by the Chen oscillator. Numerical simulations expose interesting dynamical features, such as equilibria, periodic solutions and relaxation oscillations, for distinct value of the real part of the fractional derivative of complex-order. Further work is needed to enhance our knowledge of the underlying dynamics of the network.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117213584","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857876
G. Sebestyen, A. Hangan, S. Oniga, Zoltán Gál
The article analyzes the impact of “IoT - Internet of Things” on the design of new eHealth solutions. The authors aim to illustrate that the communication models, protocols and technologies promoted under the IoT concept have a great potential in the implementation of Internet-based healthcare systems. The experiments performed by the authors in the field of eHealth reveal some possible solutions, but also some open questions.
{"title":"eHealth solutions in the context of Internet of Things","authors":"G. Sebestyen, A. Hangan, S. Oniga, Zoltán Gál","doi":"10.1109/AQTR.2014.6857876","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857876","url":null,"abstract":"The article analyzes the impact of “IoT - Internet of Things” on the design of new eHealth solutions. The authors aim to illustrate that the communication models, protocols and technologies promoted under the IoT concept have a great potential in the implementation of Internet-based healthcare systems. The experiments performed by the authors in the field of eHealth reveal some possible solutions, but also some open questions.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131755354","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857869
M. Tatar, C. Popovici, D. Mandru, I. Ardelean, Alin Plesa
In this paper the authors are presenting an omni-directional mobile robot, developed for educational and research purposes. The omni-directional motion capabilities of the robot are due to its special Mecanum wheels. The paper provides general information about Mecanum omni-directional wheels, mechanical design aspects of the wheels and the robot and it also describes the kinematic and dynamic models of the robot and the control system.
{"title":"Design and development of an autonomous omni-directional mobile robot with Mecanum wheels","authors":"M. Tatar, C. Popovici, D. Mandru, I. Ardelean, Alin Plesa","doi":"10.1109/AQTR.2014.6857869","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857869","url":null,"abstract":"In this paper the authors are presenting an omni-directional mobile robot, developed for educational and research purposes. The omni-directional motion capabilities of the robot are due to its special Mecanum wheels. The paper provides general information about Mecanum omni-directional wheels, mechanical design aspects of the wheels and the robot and it also describes the kinematic and dynamic models of the robot and the control system.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131257778","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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