M. D. Jiménez, P. Rosales-Quintero, A. Torres-Jácome, J. Molina-Reyes, M. Moreno-Moreno, F. J. de la Hidalga-Wade, C. Zuñiga-Islas, W. Calleja-Arriaga
In this work, we report the characterization of Spin-On Glass (SOG) as low temperature gate insulator. The SOG film was deposited at a temperature of 200°C, which is compatible to use on flexible substrates. The optical and electrical characterization showed that the refractive index and dielectric constant are very close to those of thermally grown SiO2. We demonstrated the use of SOG as gate insulator, fabricating and characterizing a-SiGe: H TFTs.
在这项工作中，我们报道了自旋玻璃(SOG)作为低温栅绝缘子的表征。在200°C的温度下沉积SOG薄膜，该薄膜与柔性基板兼容。光学和电学表征表明，其折射率和介电常数与热生长SiO2的折射率和介电常数非常接近。我们演示了使用SOG作为栅极绝缘体，制造和表征a-SiGe: H tft。
{"title":"Spin-On Glass as Low-Temperature Gate Insulator for Thin-Film Transistors","authors":"M. D. Jiménez, P. Rosales-Quintero, A. Torres-Jácome, J. Molina-Reyes, M. Moreno-Moreno, F. J. de la Hidalga-Wade, C. Zuñiga-Islas, W. Calleja-Arriaga","doi":"10.1109/CERMA.2010.87","DOIUrl":"https://doi.org/10.1109/CERMA.2010.87","url":null,"abstract":"In this work, we report the characterization of Spin-On Glass (SOG) as low temperature gate insulator. The SOG film was deposited at a temperature of 200°C, which is compatible to use on flexible substrates. The optical and electrical characterization showed that the refractive index and dielectric constant are very close to those of thermally grown SiO2. We demonstrated the use of SOG as gate insulator, fabricating and characterizing a-SiGe: H TFTs.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115177311","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}
J. L. Sánchez-Cervantes, G. Alor-Hernández, U. Juárez-Martínez
The diversity of hospitals and medical specialists generates the dispersion or isolation of the medical information of those entities causing its difficult location. The location of medical entities is very useful for health care of people especially when the information of such entities is isolated and is necessary an information system in order to integrate all this information in a single unit for faster access to the benefit of specialists in health care and society in general. This paper proposes ITOHealth which is a multimodal system that provides the necessary mechanisms to record and manage the information from medical entities in a single Web site for easy location through two options: a PHP Web and J2ME application.
{"title":"ITOHealth: A Multimodal Location-Based System for Discovering Medical Entities","authors":"J. L. Sánchez-Cervantes, G. Alor-Hernández, U. Juárez-Martínez","doi":"10.1109/CERMA.2010.101","DOIUrl":"https://doi.org/10.1109/CERMA.2010.101","url":null,"abstract":"The diversity of hospitals and medical specialists generates the dispersion or isolation of the medical information of those entities causing its difficult location. The location of medical entities is very useful for health care of people especially when the information of such entities is isolated and is necessary an information system in order to integrate all this information in a single unit for faster access to the benefit of specialists in health care and society in general. This paper proposes ITOHealth which is a multimodal system that provides the necessary mechanisms to record and manage the information from medical entities in a single Web site for easy location through two options: a PHP Web and J2ME application.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130406558","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}
E. D. Lorias, M. Minor, S. Ortiz, P. Olivares, J. Gnecchi
Minimally invasive surgery demands the development and maintenance of the specialized surgeon’s psychomotor skills. These skills can be measured objectively through hybrid and virtual training systems. Of which, the most advanced, integrates force feedback systems and augmented reality graphics. However, these systems are inaccessible because of their high cost, limiting the expected academic impact. In this article, we propose a computerized system for an objective evaluation, which can be integrated into any physical trainer at a low cost.
{"title":"Computer System for the Evaluation of Laparoscopic Skills","authors":"E. D. Lorias, M. Minor, S. Ortiz, P. Olivares, J. Gnecchi","doi":"10.1109/CERMA.2010.11","DOIUrl":"https://doi.org/10.1109/CERMA.2010.11","url":null,"abstract":"Minimally invasive surgery demands the development and maintenance of the specialized surgeon’s psychomotor skills. These skills can be measured objectively through hybrid and virtual training systems. Of which, the most advanced, integrates force feedback systems and augmented reality graphics. However, these systems are inaccessible because of their high cost, limiting the expected academic impact. In this article, we propose a computerized system for an objective evaluation, which can be integrated into any physical trainer at a low cost.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128920434","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}
L. Flores-Pulido, G. Rodríguez-Gómez, O. Starostenko, Carlos Santacruz-Olmos
Visual image retrieval systems imply novel approaches to improve their performance. Search methods require mathematical formalism for feature extraction of multi medial data. Euclidean distance is not enough approach for extracting similarity between images. Radial basis function provides necessary optimization for similarity measures when query image is used as reference. This paper explains a novel method exploiting radial basis function applied for visual image retrieval area. The goal of the approach is the searching process optimization for image retrieval which is obtained results reveal interesting conclusions about advantages of the proposed method even conventional similarity measurement approaches used in content based retrieval area.
{"title":"Radial Basis Function for Visual Image Retrieval","authors":"L. Flores-Pulido, G. Rodríguez-Gómez, O. Starostenko, Carlos Santacruz-Olmos","doi":"10.1109/CERMA.2010.51","DOIUrl":"https://doi.org/10.1109/CERMA.2010.51","url":null,"abstract":"Visual image retrieval systems imply novel approaches to improve their performance. Search methods require mathematical formalism for feature extraction of multi medial data. Euclidean distance is not enough approach for extracting similarity between images. Radial basis function provides necessary optimization for similarity measures when query image is used as reference. This paper explains a novel method exploiting radial basis function applied for visual image retrieval area. The goal of the approach is the searching process optimization for image retrieval which is obtained results reveal interesting conclusions about advantages of the proposed method even conventional similarity measurement approaches used in content based retrieval area.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123941419","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}
In this work a discrete-time model for the Pendubot is proposed based on the symplectic Euler method. Then, a discrete-time sliding mode controller and observer are designed. A simulation study is carried on in order to verify the good performance of the proposed modeling and control scheme when compared to the case of using explicit Euler method for discrete-time modeling.
{"title":"Discrete-Time Modeling and Control of an Under-actuated Robotic System","authors":"J. Rivera, Luis Garcia, S. Ortega, J. Raygoza","doi":"10.1109/CERMA.2010.120","DOIUrl":"https://doi.org/10.1109/CERMA.2010.120","url":null,"abstract":"In this work a discrete-time model for the Pendubot is proposed based on the symplectic Euler method. Then, a discrete-time sliding mode controller and observer are designed. A simulation study is carried on in order to verify the good performance of the proposed modeling and control scheme when compared to the case of using explicit Euler method for discrete-time modeling.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121514798","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}
Programming Wireless Sensor Networks (WSN) involves learning very different programming paradigms from those commonly used in the development of computer systems. Due to the lack of advantages obtained from the last generation high level programming languages, the growth of WSNs is significantly impeded. Programming WSN nodes requires knowledge of specific hardware which depends on the WSN architecture. A method to provide the benefits of high level languages is to use a hardware abstraction layer. MiniMV is a virtual machine designed to be used in embedded systems and it is capable of executing Java class files (containing a subset java bytecode instructions) created by a Java standard compiler. This work focuses on the implementation of MiniMV in the Tmote Sky platform using the C language and the TinyOS hardware functions as native methods and how MiniMV has been ported to other platform with minimal changes such as LiSANDRA developed by UABC-Tij research group.
{"title":"A Java Compatible Virtual Machine as an Embedded Middleware for Wireless Sensor Networks","authors":"Carlos Cota, Leocundo Aguilar, G. Licea","doi":"10.1109/CERMA.2010.104","DOIUrl":"https://doi.org/10.1109/CERMA.2010.104","url":null,"abstract":"Programming Wireless Sensor Networks (WSN) involves learning very different programming paradigms from those commonly used in the development of computer systems. Due to the lack of advantages obtained from the last generation high level programming languages, the growth of WSNs is significantly impeded. Programming WSN nodes requires knowledge of specific hardware which depends on the WSN architecture. A method to provide the benefits of high level languages is to use a hardware abstraction layer. MiniMV is a virtual machine designed to be used in embedded systems and it is capable of executing Java class files (containing a subset java bytecode instructions) created by a Java standard compiler. This work focuses on the implementation of MiniMV in the Tmote Sky platform using the C language and the TinyOS hardware functions as native methods and how MiniMV has been ported to other platform with minimal changes such as LiSANDRA developed by UABC-Tij research group.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124362128","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}
J. Torres-Jiménez, J. L. Guardado, F. Rivas, S. Maximov, E. Melgoza
This paper describes a genetic algorithm (GA) developed for the reconfiguration of radial distribution systems. The reconfiguration is treated as an optimization problem of combinatory nature, where the aim is to obtain a configuration with minimal power losses, iterations and also with some distribution system restrictions. The initial population of the GA is obtained using spanning trees techniques (ST). Further, efficient operators for crossing and mutation are used to explore the search space. Each individual aptitude is evaluated by means of a power flows program. The developed algorithm is applied to a distribution system reconfiguration, obtaining satisfactory results.
{"title":"Reconfiguration of Power Distribution Systems Using Genetic Algorithms and Spanning Trees","authors":"J. Torres-Jiménez, J. L. Guardado, F. Rivas, S. Maximov, E. Melgoza","doi":"10.1109/CERMA.2010.144","DOIUrl":"https://doi.org/10.1109/CERMA.2010.144","url":null,"abstract":"This paper describes a genetic algorithm (GA) developed for the reconfiguration of radial distribution systems. The reconfiguration is treated as an optimization problem of combinatory nature, where the aim is to obtain a configuration with minimal power losses, iterations and also with some distribution system restrictions. The initial population of the GA is obtained using spanning trees techniques (ST). Further, efficient operators for crossing and mutation are used to explore the search space. Each individual aptitude is evaluated by means of a power flows program. The developed algorithm is applied to a distribution system reconfiguration, obtaining satisfactory results.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124159991","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}
G. Laguna-Sánchez, R. Barrón-Fernández, A. Prieto-Guerrero
Wavelet decomposition's ability to deal with heterogeneous and intermittent behavior and its effectively noisy removing property, has become the wavelet-based estimation in a very interesting non parametric technique. This paper proposes a wavelet-based methodology to improve channel estimation, via wavelet-based denoising approach, for a power-line communication network impaired with significant impulsive noise.
{"title":"Wavelet-Based Improvement for Channel Estimation in a Power-Line Communication Environment Impaired by Impulsive Noise","authors":"G. Laguna-Sánchez, R. Barrón-Fernández, A. Prieto-Guerrero","doi":"10.1109/CERMA.2010.64","DOIUrl":"https://doi.org/10.1109/CERMA.2010.64","url":null,"abstract":"Wavelet decomposition's ability to deal with heterogeneous and intermittent behavior and its effectively noisy removing property, has become the wavelet-based estimation in a very interesting non parametric technique. This paper proposes a wavelet-based methodology to improve channel estimation, via wavelet-based denoising approach, for a power-line communication network impaired with significant impulsive noise.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129134834","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}
Jose L Tapia, Joel O. Pacheco Sotelo, E. Díaz Rodríguez, Yulia Nikolaevna Ledeneva, Rene Arnulfo Garcia Hernandez
An electrical cathode model (ECM) of a high pressure sodium lamp (HPS) based on physical laws has been developed. The proposed ECM calculates the instantaneous voltage drop in a cathode sheath and the temperature distribution inside the cathode using as input parameter the cathode geometry and the positive column current. The model is based on the electrode heat transport equation, solved using the finite elements method. It is found that the ECM predicts in a satisfactory way the cathode voltage drop over a wide range of work conditions. The obtained results were compared with those reported in the current literature. It can be concluded that the ECM is a useful tool in understanding the interaction between the positive column and the cathode in order to improve, for instance, HPS lamp ballast designs.
{"title":"An Electrical Cathode Model of a High Pressure Sodium Lamp","authors":"Jose L Tapia, Joel O. Pacheco Sotelo, E. Díaz Rodríguez, Yulia Nikolaevna Ledeneva, Rene Arnulfo Garcia Hernandez","doi":"10.1109/CERMA.2010.73","DOIUrl":"https://doi.org/10.1109/CERMA.2010.73","url":null,"abstract":"An electrical cathode model (ECM) of a high pressure sodium lamp (HPS) based on physical laws has been developed. The proposed ECM calculates the instantaneous voltage drop in a cathode sheath and the temperature distribution inside the cathode using as input parameter the cathode geometry and the positive column current. The model is based on the electrode heat transport equation, solved using the finite elements method. It is found that the ECM predicts in a satisfactory way the cathode voltage drop over a wide range of work conditions. The obtained results were compared with those reported in the current literature. It can be concluded that the ECM is a useful tool in understanding the interaction between the positive column and the cathode in order to improve, for instance, HPS lamp ballast designs.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129284759","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}
A. García-Almanza, Biliana Alexandrova-Kabadjova, Serafín Martínez-Jaramillo
This paper presents a novel method to predict bankruptcy, using a Genetic Programming (GP) based approach called Evolving Decision Rules (EDR). In order to obtain the optimum parameters of the classifying mechanism, we use a data set, obtained from the US Federal Deposit Insurance Corporation (FDIC). The set consists of limited financial institutions’ data, presented as variables widely used to detect bank failure. The outcome is a set of comprehensible decision rules, which allows to identify cases of bankruptcy. Further, the reliability of those rules is measured in terms of the true and false positive rate, calculated over the whole data set and plot over the Receiving Operating Characteristic (ROC) space. In order to test the accuracy performance of the mechanism, we elaborate two experiments: the first, aimed to test the degree of the variables’ usefulness, provides a quantitative and a qualitative analysis. The second experiment completed over 1000 different re-sampled cases is used to measure the performance of the approach. To our knowledge this is the first computational technique in this field able to give useful insights of the method’s predictive structure. The main contributions of this work are three: first, we want to bring to the arena of bankruptcy prediction a competitive novel method which in pure performance terms is comparable to state of the art methods recently proposed in similar works, second, this method provides the additional advantage of transparency as the generated rules are fully interpretable in terms of simple financial ratios, third and final, the proposed method includes cutting edge techniques to handle highly unbalanced samples, something that is very common in bankruptcy applications.
{"title":"Understanding Bank Failure: A Close Examination of Rules Created by Genetic Programming","authors":"A. García-Almanza, Biliana Alexandrova-Kabadjova, Serafín Martínez-Jaramillo","doi":"10.1109/CERMA.2010.14","DOIUrl":"https://doi.org/10.1109/CERMA.2010.14","url":null,"abstract":"This paper presents a novel method to predict bankruptcy, using a Genetic Programming (GP) based approach called Evolving Decision Rules (EDR). In order to obtain the optimum parameters of the classifying mechanism, we use a data set, obtained from the US Federal Deposit Insurance Corporation (FDIC). The set consists of limited financial institutions’ data, presented as variables widely used to detect bank failure. The outcome is a set of comprehensible decision rules, which allows to identify cases of bankruptcy. Further, the reliability of those rules is measured in terms of the true and false positive rate, calculated over the whole data set and plot over the Receiving Operating Characteristic (ROC) space. In order to test the accuracy performance of the mechanism, we elaborate two experiments: the first, aimed to test the degree of the variables’ usefulness, provides a quantitative and a qualitative analysis. The second experiment completed over 1000 different re-sampled cases is used to measure the performance of the approach. To our knowledge this is the first computational technique in this field able to give useful insights of the method’s predictive structure. The main contributions of this work are three: first, we want to bring to the arena of bankruptcy prediction a competitive novel method which in pure performance terms is comparable to state of the art methods recently proposed in similar works, second, this method provides the additional advantage of transparency as the generated rules are fully interpretable in terms of simple financial ratios, third and final, the proposed method includes cutting edge techniques to handle highly unbalanced samples, something that is very common in bankruptcy applications.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"39 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133219092","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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