发布求助
文献互助 智能选刊 最新文献

18th International Conference on Electronics, Communications and Computers (conielecomp 2008)最新文献

筛选
英文 中文
Obtaining Stereographics Using a Two-Monitor System and a Set of Mirrors 利用双监视器系统和一组反射镜获得立体图像
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.40
F. Ramírez, Marva Angélica Mora Lumbreras
{"title":"Obtaining Stereographics Using a Two-Monitor System and a Set of Mirrors","authors":"F. Ramírez, Marva Angélica Mora Lumbreras","doi":"10.1109/CONIELECOMP.2008.40","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.40","url":null,"abstract":"Nowadays is quite common to find personal computers with two monitors, all they need is a video card with outputs to (at least) two monitors, which should be as identical as possible, and show each image in the stereo pair, through each monitor. This paper shows first how to build a simple set of mirrors so that each eye will look at a different monitor, and second, how to write an OpenGL code that computes correct stereo pairs of a moving scene and displays them, each on its own monitor, enabling us to see it in real 3D.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123589342","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
Mathematical Model of a Linear Electric Actuator with Prosthesis Applications 用于假肢的线性电动执行器的数学模型
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.29
Edrey D. Ruiz-Rojas, J. Vázquez-González, R. A. Palomares, A. Z. Escudero-Uribe, J. R. Vazquez
{"title":"Mathematical Model of a Linear Electric Actuator with Prosthesis Applications","authors":"Edrey D. Ruiz-Rojas, J. Vázquez-González, R. A. Palomares, A. Z. Escudero-Uribe, J. R. Vazquez","doi":"10.1109/CONIELECOMP.2008.29","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.29","url":null,"abstract":"This paper presents the kinematic and dynamic model of a linear electric actuator. The kinematic model was obtained by geometric analysis. The dynamic model was obtained with Lagrange's methodology. This linear actuator forms part of parallel prosthetic elbow with 3 DOF developed in the Instituto Nacional de Astrofisica, Optica y Electronica (INAOE). This linear actuator will be used in the elbow prosthesis in order to emulate the capacity of a muscle to extend and contract in a linear way. In this paper we show the behavior the electromechanical according to the equations of the system and its physical parameters. The model includes the analysis of electrical and mechanical parts. The model includes conversion of rotational movement to linear movement and relation torque-force necessary for emulating a human muscle.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134024372","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: 17
ARMOLEO: An Architecture for Mobile Learning Objects ARMOLEO:移动学习对象的架构
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.12
S. Castillo-Perez, G. Ayala
{"title":"ARMOLEO: An Architecture for Mobile Learning Objects","authors":"S. Castillo-Perez, G. Ayala","doi":"10.1109/CONIELECOMP.2008.12","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.12","url":null,"abstract":"In this paper we introduce ARMOLEO, an ARchitecture for MObile LEarning Objects based on our concept of mobile learning objects. This architecture is aimed to allow learners to participate in individual or collaborative learning through simulated or real time authentic activities, supporting situated, personalized and collaborative learning.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131814125","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: 21
Digital Spirometer with LabView Interface 数字肺活量计与LabView接口
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.31
Alejos-Palomares R, Ramírez Cortes, Domínguez-Martinez N
{"title":"Digital Spirometer with LabView Interface","authors":"Alejos-Palomares R, Ramírez Cortes, Domínguez-Martinez N","doi":"10.1109/CONIELECOMP.2008.31","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.31","url":null,"abstract":"In the present document, the design and the construction of a low cost digital spirometer is presented like a basic tool for evaluate of the respiratory capacity. A Spirometer is the ideal instrument to measure the mechanics ventilatoria in respiratory studies that allow the analysis, determination and monitoring of diverse human respiratory diseases like asthma, pulmonary embolism, respiratory bronchitis and others deficiencies. The spirometer developed is an instrument portable, of easy handling and computerized that fulfills with the American norms given by the American Thorax Society (ATS) and the requirements of the Mexican population. By means of digital electronics and a pneumotachometer, the virtual instrument acquires and the respiratory flow using a NI USB interface. The volume-time and flow-volume graphs are displayed means a virtual instrument developed in Labview. The spirometrics test includes parameters of the mechanics ventilatoria like the FEV1 (Forced Expiratory Volume in the first second), FVC (Forced Vital Capacity), and MEF (Maximum Expiratory Flow).","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114616325","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: 14
Propagation Measurements for Path Loss Characterization of Cantera Walls at UHF in Mexican Historic Buildings 墨西哥历史建筑中特高频坎特拉墙路径损耗特性的传播测量
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.32
L. G. Guerrero-Ojeda, Alfredo Florián-Méndez, Alejandro Aragón Zavala, J. Cuevas-Ruíz
{"title":"Propagation Measurements for Path Loss Characterization of Cantera Walls at UHF in Mexican Historic Buildings","authors":"L. G. Guerrero-Ojeda, Alfredo Florián-Méndez, Alejandro Aragón Zavala, J. Cuevas-Ruíz","doi":"10.1109/CONIELECOMP.2008.32","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.32","url":null,"abstract":"This paper shows the procedure to gather propagation measurements to characterize the path loss of cantera stone for the penetration of RF signals at UHF frequencies in various Mexican historic buildings. It is the first time that such material is tested for RF propagation and since there are many buildings made of this material in many cities in Mexico the results obtained are the base for future research as it is conducted now and will be published in the weeks to follow. The places where the experiment was conducted are: Municipal Government Building in Oaxaca, Benito Juarez Masonic Lodge Building in Oaxaca both buildings made of green cantera stone; Casa del Dean Museum and Tecamachalco Ex Convent in Puebla made of gray cantera stone. The frequencies at which the experiment was conducted were around 900 MHz, in the UHF band.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128233168","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
Analysis and Implementation of LMS Algorithm with Coding Error in the DSP TMS320C6713 带有编码误差的LMS算法在DSP TMS320C6713中的分析与实现
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.7
José Velázquez López, J. Ochoa, Daniel Espinobarro, J. Sanchez
{"title":"Analysis and Implementation of LMS Algorithm with Coding Error in the DSP TMS320C6713","authors":"José Velázquez López, J. Ochoa, Daniel Espinobarro, J. Sanchez","doi":"10.1109/CONIELECOMP.2008.7","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.7","url":null,"abstract":"In this work we present the analysis and implementation in a digital signal processor (DSP), of a variant of the least mean square (LMS) algorithm. Modification is based on codifying the error of the algorithm, in order to reduce the design complexity for its implementation in digital adaptive filters, because the error is made up of whole values. The results demonstrate an increase in the convergence speed; it's affected indirectly by the convergence factor, and to obtain a floating point operation reduction, which accelerates processing. These, to demonstrate the results obtained from the implementation of the algorithm in the digital signal processor TMS320C6713 by Texas instruments.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115843787","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
Arm-Helicopter Control with Positive Signals 积极信号的武装直升机控制
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.15
S. Gonzalez, L. Jiménez, A. Mendoza, E. Corral, R. Guerra, R. Jiménez
{"title":"Arm-Helicopter Control with Positive Signals","authors":"S. Gonzalez, L. Jiménez, A. Mendoza, E. Corral, R. Guerra, R. Jiménez","doi":"10.1109/CONIELECOMP.2008.15","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.15","url":null,"abstract":"In this paper a control algorithm is proposed, which provides positive signals to the propeller inputs of a 3 degrees of freedom arm-helicopter system, in consequence the propellers spin only in one direction. The originality of this paper in reference to similar papers, is the fact that preview control algorithms are designed to allow propeller spin in both directions, that bring to the helicopter system a movement acting in the same direction of gravitation force, in practical sense this never happens, because the helicopter system presents an unstable behavior. The proposed algorithm regulates the system angular position using information of angular displacements measurements to generate only positive control signals, and also compensates the unknown friction effects present in the joints of the system. The performance of the algorithm is evaluated using numerical tests, which shows the system stability considering the regulation problem of two degrees of freedom, in the same sense a stability argumentation is presented to validate the control algorithm proposed.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121275881","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
Automatic Generation of Rain-Attenuation Maps According to the Rain-Rate Provided by Instant Data of Meteorological Stations in Mexico 根据墨西哥气象站即时数据提供的雨量衰减图自动生成
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.33
C. Velasco-Casillas, F. Toledo-Flores, J. Cuevas-Ruíz, Alejandro Aragón Zavala, J. A. Delgado-Penín
{"title":"Automatic Generation of Rain-Attenuation Maps According to the Rain-Rate Provided by Instant Data of Meteorological Stations in Mexico","authors":"C. Velasco-Casillas, F. Toledo-Flores, J. Cuevas-Ruíz, Alejandro Aragón Zavala, J. A. Delgado-Penín","doi":"10.1109/CONIELECOMP.2008.33","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.33","url":null,"abstract":"In frequencies over 10 GHz the rain is the most important factor to take in count to evaluate the attenuation level. For several kinds of applications is very useful to known this attenuation in the link every moment while the link is in operation to implement some strategy to mitigate it. According to the ITU-R, there is a procedure to calculate the rain attenuation, however this methodology gives only an average and constant attenuation value. In this work, an automatic procedure to obtain the instant attenuation level for several frequencies using the data provided by MNS (Meteorological National System) in Mexico is explained and their publication in a Web server is showed. Using these values, attenuation maps are elaborated and published in that Web server too.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133690303","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
FPGA Hardware Architecture of the Steganographic ConText Technique 隐写上下文技术的FPGA硬件结构
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.24
E. Gomez-Hernández, C. F. Uribe, R. Cumplido
{"title":"FPGA Hardware Architecture of the Steganographic ConText Technique","authors":"E. Gomez-Hernández, C. F. Uribe, R. Cumplido","doi":"10.1109/CONIELECOMP.2008.24","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.24","url":null,"abstract":"This work presents a hardware architecture of the ConText steganographic technique in a Cyclone II FPGA of the Altera family. The ConText technique takes advantage of noisy regions and those with abrupt gray levels changes in an image where the hidden information is very difficult to detect; the process to locate this region is highly repetitive and computationally expensive. The technique is implemented in an FPGA to increase the processing speed. The implementation results show a throughput of 61.5 Mbps.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121404579","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
Analysis of the Lyapunov Function of Design Process for Different Design Strategies 不同设计策略下设计过程的Lyapunov函数分析
18th International Conference on Electronics, Communications and Computers (conielecomp 2008) Pub Date : 2008-03-03 DOI: 10.1109/CONIELECOMP.2008.16
A. Zemliak
{"title":"Analysis of the Lyapunov Function of Design Process for Different Design Strategies","authors":"A. Zemliak","doi":"10.1109/CONIELECOMP.2008.16","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2008.16","url":null,"abstract":"The problem of analog system design for a minimal computer time has been formulated as the functional minimization problem of the control theory. The design process in this case is formulated as the controllable dynamic system. The optimal sequence of the control vector switch points was determined as a principal characteristic of the minimal-time system design algorithm. The different forms of the Lyapunov function were proposed to analyze the behavior of design process. The special function that is a combination of Lyapunov function and its time derivative was proposed to predict the optimal control vector structure.","PeriodicalId":202730,"journal":{"name":"18th International Conference on Electronics, Communications and Computers (conielecomp 2008)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124234344","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信