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Mathematical Solution for the Two-dimensional Electric Field in a Rectangular Channel 矩形通道中二维电场的数学解
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.56
G.M.D. Almaraz, E. Calderón
{"title":"Mathematical Solution for the Two-dimensional Electric Field in a Rectangular Channel","authors":"G.M.D. Almaraz, E. Calderón","doi":"10.1109/CERMA.2006.56","DOIUrl":"https://doi.org/10.1109/CERMA.2006.56","url":null,"abstract":"The solution for the two-dimensional electric field is developed in this study, caused by a dielectric liquid in a rectangular channel. Diffuse layer of charge is established by adding the three different electric flow phenomena through an elementary surface: diffusion, convection and migration. Then, assuming the same electric valence for all ions species, the non dimensional equations for current density and charge conservation are obtained with aid of referential parameters. Three expressions for the established non dimensional diffuse layer are proposed considering no motion of the dielectric liquid, and independence on time of diffuse layer's parameters. The solution for the principal system is carried out by applying the Green functions; the expression obtained represents the potential field distribution in the rectangular channel. The evolutions for electric field along both, the central and close to the wall sections, are presented. Finally, the lines of constant electric field, which depend on the rate between the two sides of rectangular section, are also shown","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"287 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114550402","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: 0
Building Interpretable Fuzzy Systems: a New Approach to Fuzzy Modeling 构建可解释模糊系统:一种新的模糊建模方法
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.23
J. Montes, R.M. Llorca, J. Grau
{"title":"Building Interpretable Fuzzy Systems: a New Approach to Fuzzy Modeling","authors":"J. Montes, R.M. Llorca, J. Grau","doi":"10.1109/CERMA.2006.23","DOIUrl":"https://doi.org/10.1109/CERMA.2006.23","url":null,"abstract":"In this article a new methodology is proposed to construct linguistically interpretable fuzzy models from input and output data. The proposed methodology includes clustering techniques to determine rules, the minimum squares method to adjust consequents and, for a sharp tuning, the descendant gradient to adjust the modal values of sets that confirm the antecedent. The antecedent partition uses triangular sets with 0.5 interpolations. The most promissory aspect in our proposal consists in achieving a great precision without sacrificing the fuzzy system interpretability. Some applications are presented to very well-known problems and fuzzy sets and the results are compared with those obtained by other authors using other techniques","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129525415","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: 2
Digital Images Phase Encryption Using Fractional Fourier Transform 基于分数阶傅里叶变换的数字图像相位加密
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.38
J. Vilardy, J. E. Calderon, C. Torres, L. Mattos
{"title":"Digital Images Phase Encryption Using Fractional Fourier Transform","authors":"J. Vilardy, J. E. Calderon, C. Torres, L. Mattos","doi":"10.1109/CERMA.2006.38","DOIUrl":"https://doi.org/10.1109/CERMA.2006.38","url":null,"abstract":"In the present paper the fractional Fourier transform was used to make phase encryption of color digital images. The image to encrypt is placed as the phase of a complex exponential, then is fractionally transformed three times and multiplied in intermediate steps by two statistically independent random phase masks thus to obtain the encrypted image, to decrypt the coding image the encryption procedure is applied in the inverse sense to the conjugated complex of the encrypted image, then is taken the negative of the phase of the resulting function from the decryption process and the original image is obtained this way that had been encrypted. The use of the fractional Fourier transform and the phase encryption of the image add much more complexity to the decryption of the image to who wants decrypt it without being authorized. In the cryptographic algorithm implemented five keys are used, made up of three fractional orders and two random phase masks, all these keys are necessary for proper decryption affording reliability to image transference via transmission networks","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"37 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128230735","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: 29
Using Web Pages Accessible Design for the Correct Web Visualization on Mobile Devices 在移动设备上使用网页无障碍设计实现正确的网页可视化
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.97
S. González, S.V.J. Sosa, R. Montes, Juan C. Olivares-Rojas
{"title":"Using Web Pages Accessible Design for the Correct Web Visualization on Mobile Devices","authors":"S. González, S.V.J. Sosa, R. Montes, Juan C. Olivares-Rojas","doi":"10.1109/CERMA.2006.97","DOIUrl":"https://doi.org/10.1109/CERMA.2006.97","url":null,"abstract":"The objective of this work is to use the recommendations for the accessible design of Web pages and applying them for the correct visualization of Web resources on mobile devices. A small study was made taking in account these considerations, obtaining that are feasible to apply these recommendations or practices of good design for their use on mobile devices. Also a proposal appears to solve the problem of correct Web pages visualization on mobile devices","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121500621","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: 2
PSK Digital Modulation DSP Implementation Applied to Software Radio 应用于软件无线电的PSK数字调制DSP实现
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.76
D. S. Gómez, I. A. Aguirre-Hernández, Y. L. Rodríguez-Guarneros, J. Villarruel
{"title":"PSK Digital Modulation DSP Implementation Applied to Software Radio","authors":"D. S. Gómez, I. A. Aguirre-Hernández, Y. L. Rodríguez-Guarneros, J. Villarruel","doi":"10.1109/CERMA.2006.76","DOIUrl":"https://doi.org/10.1109/CERMA.2006.76","url":null,"abstract":"Demand of future wireless communication services will require an always-on connection according to the quality of service QoS and provider service. This QoS involve multiple wireless standards that require intelligent and dynamic portable device. Wireless modems are key part of mobile devices in adequate transmissions according to QoS. In order to adapt different wireless standard, future radios will need to be implemented on software form, Thanks to DSP and wireless technologies, today software modem radios for 2 and 2.5 Generations have already been implemented. Here, we have analyzed and implemented a phase shift keying (PSK) modem. A key feature of this modem is the design of an integer k-sampling time a table bit rate independent. This feature has allowed reducing the receiver memory and time implementation by reducing the delay and sampling time to the minimum. This provides a bit rate limit only by the analog to digital converter sampling time. The PSK modem has been implemented on a digital signal processor TMS320C5416 platforms, the results obtained were according to simulation and theoretical analysis","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128128126","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: 9
The Use of Data Mining to Determine Cheating in Online Student Assessment 使用数据挖掘来判定在线学生评估中的作弊行为
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.91
Alberto Ochoa, Amol S. Wagholikar
{"title":"The Use of Data Mining to Determine Cheating in Online Student Assessment","authors":"Alberto Ochoa, Amol S. Wagholikar","doi":"10.1109/CERMA.2006.91","DOIUrl":"https://doi.org/10.1109/CERMA.2006.91","url":null,"abstract":"We can find several online assessment applications, Windows oriented or Web based, licensed or gnu free software, proprietary or standardized. All of them executing basic questions and test interoperability stages: providing assessment items, training and/or evaluation, and the assignment of a grade. Tons of information resulting of this educational process is stored into databases, including starting times, local or remote IP addresses, finishing times and, the student's behavior: frequency of visits, attempts to be trained, and preliminary grades for specific subjects, demographics and perceptions about subject under evaluation. We propose the use of data mining to identify students (persons) that commit cheat in online assessments (cyber cheats) and identify patterns to detect and avoid this practice","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125772344","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: 13
Remote Detection System of Methane LeakageUsing FTIR Spectrometric Technology 利用FTIR光谱技术的甲烷泄漏远程检测系统
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.78
M. Lopez, S. Sadovnychiy, P. Vi
{"title":"Remote Detection System of Methane LeakageUsing FTIR Spectrometric Technology","authors":"M. Lopez, S. Sadovnychiy, P. Vi","doi":"10.1109/CERMA.2006.78","DOIUrl":"https://doi.org/10.1109/CERMA.2006.78","url":null,"abstract":"In this work, the characteristics of methane gas detection have been simulated using extracted data of a PFTIR system. Results of 14 ppm of gas methane concentration produced by a leakage to distances of 1000 mts were obtained. Our model of detection in passive way proposes as new implementation the use of natural heat of the surface ground as infrared radiation source in the interval 20-50degC. The use of helicopter for the aerial remote detection is also proposed. In addition these system allows the global location, the video and the infrared photo capture at the moment of detection","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134478735","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: 0
A Simple and Practical Method for Monitoring Dimensional Quality in a Multivariate Process 一种简单实用的多变量过程尺寸质量监控方法
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.101
Eduardo Marroquín, Georgina Solís
{"title":"A Simple and Practical Method for Monitoring Dimensional Quality in a Multivariate Process","authors":"Eduardo Marroquín, Georgina Solís","doi":"10.1109/CERMA.2006.101","DOIUrl":"https://doi.org/10.1109/CERMA.2006.101","url":null,"abstract":"In this paper we propose a simple and practical method for monitoring a multivariate process. This method is used for monitoring the dimensional quality of a door panel in the automotive industry. In order to detect out-of-control signals, we use a T2 control chart. When the T2 statistic shows a point out of control, we recommend using a principal components contribution chart and a variables contribution chart. These two charts will show which variables and/or correlations are responsible for the signal. Besides, the principal components contribution chart and the interpretation of the principal components provide information about the dimensional structure of the panel, so that this structure confirms the out-of-control variables and correlations and used to take corrective actions in the process","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131903874","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: 2
The Use of Ontologies for Creating Virtual Scenarios in GeDA-3D 在GeDA-3D中使用本体创建虚拟场景
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.123
F. Ramos, A. Aguirre, J. Zaragoza, L. Razo
{"title":"The Use of Ontologies for Creating Virtual Scenarios in GeDA-3D","authors":"F. Ramos, A. Aguirre, J. Zaragoza, L. Razo","doi":"10.1109/CERMA.2006.123","DOIUrl":"https://doi.org/10.1109/CERMA.2006.123","url":null,"abstract":"The objective of this article is to show how useful can be the application of ontologies for constructing 3D scenarios and describing the laws which rule an environment. It is possible to create 3D scenarios using commercial 3D tools. However, it's important to pay attention not only to ontologies, but also to the constructing of a virtual environment. Even more in actual virtual environments, where it's necessary to bring virtual creatures to actual conditions according to the pre-established conditions like friction, humidity, gravity, etc. In common applications these laws are given as rules in extension of the system. In this article we present an original approach to solve both problems using ontology. The main idea is to use the ontology to: describe relations between the elements of the environment to help to recreate the scenario and use the ontology to describe the laws of the environment","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114570567","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: 2
Signal Generation Based on Low Cost Virtual Instrumentation 基于低成本虚拟仪器的信号生成
Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI: 10.1109/CERMA.2006.120
Í. Aguirre, R.U. Garbus, R. C. Sanchez
{"title":"Signal Generation Based on Low Cost Virtual Instrumentation","authors":"Í. Aguirre, R.U. Garbus, R. C. Sanchez","doi":"10.1109/CERMA.2006.120","DOIUrl":"https://doi.org/10.1109/CERMA.2006.120","url":null,"abstract":"The digital programmable signal generator (DPSG) is a system capable of generating the classical signals, like sinusoidal, quadratic, triangular and sawtooth, as well as any other arbitrary analog signal defined by the user through the waveform editor using different alternatives like using a graphical editor, a text editor, a mathematical equations editor and an armonics editor. To generate the signal, the direct digital synthesis method is used (DDS). The system is composed of the software module developed in the LabView 7.1 framework, which corresponds to the virtual instrument associated with the wave shape editor and the board holding the non-volatile RAM in which the samples of the signal to be generated are stored, signals previously digitalized in the editor, the muC and the CPLD that control the system operability, and the digital to analog converter DAC which outputs the 8 bits resolution analog signal","PeriodicalId":179210,"journal":{"name":"Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127202700","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
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