发布求助
文献互助 智能选刊 最新文献

The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011最新文献

筛选
英文 中文
A study of automatic speech intelligibility testing for Thai oral surgical patients 泰国口腔外科患者语音清晰度自动测试研究
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947996
N. Pitaksirianant, K. Saykhum, C. Wutiwiwatchai, A. Chotimongkol, A. Pimkhaokham
{"title":"A study of automatic speech intelligibility testing for Thai oral surgical patients","authors":"N. Pitaksirianant, K. Saykhum, C. Wutiwiwatchai, A. Chotimongkol, A. Pimkhaokham","doi":"10.1109/ECTICON.2011.5947996","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947996","url":null,"abstract":"This paper introduces the use of automatic speech recognition (ASR) in speech intelligibility testing for oral surgical patients caused by cancer, tumor, or fracture. The proposed automatic system aims to help reduce the effort and cost required by the conventional human listening test. We developed a phone-based ASR system which outputs the best matched word out of a set of target words given a patient's recorded speech. To enhance the performance of the ASR system, an acoustic model is adapted toward the characteristics of each patient's voice. With an unsupervised speaker adaptation technique, the correlation between speech intelligibility scores given by the ASR system and the ones given by human judges was improved by 57% relatively. Although the overall correlation is still not sufficient for practical use at this state of the research, there is a possibility to apply the system for some specific types of patients such as fracture which the system achieved the correlation as high as 0.91.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133496407","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
Scheduling & resources sharing technique for adaptive LMS filter 自适应LMS滤波器的调度与资源共享技术
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947784
W. Shenming, W. Suntiamorntut, N. Jindapetch, Ji Qiufan
{"title":"Scheduling & resources sharing technique for adaptive LMS filter","authors":"W. Shenming, W. Suntiamorntut, N. Jindapetch, Ji Qiufan","doi":"10.1109/ECTICON.2011.5947784","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947784","url":null,"abstract":"This paper presents a scheduling & resources sharing technique for adaptive LMS (Least-Mean-Square) filter with low power consumption and low resources utilization. It used an 8-bit fixed-point arithmetic representation for the adaptive filter system based on FPGA. The design has been synthesized and simulated in Xilinx ISE. LMS algorithm is widely used in the adaptive filter for noise cancellation system or hearing aid system. We verified the parameter step size u, through simulated the LMS algorithm on MATLAB. And then, we implemented and simulated the original LMS circuit and the proposed LMS circuit which use the scheduling & resources sharing technique design in Xilinx ISE. We found that the proposed circuit uses resources less than the original circuit. Based on the XPower Analyzer tool, the power consumption is estimated. The results showed that the proposed circuit dissipates less power than the original circuit. It nearly economizes 36.4% power consumption compared with the original one.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133554596","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
Diagnostic of circuit breaker interrupter by means of a frequency response analysis 用频率响应分析方法诊断断路器的断路
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947924
M. Srisupha, C. Hille
{"title":"Diagnostic of circuit breaker interrupter by means of a frequency response analysis","authors":"M. Srisupha, C. Hille","doi":"10.1109/ECTICON.2011.5947924","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947924","url":null,"abstract":"SF6 self blast circuit breakers use the flow back of high pressure gas from the expansion chamber, which is generated by ablation of a PTFE-nozzle and the arc radiation to interrupt the arc. The interruption capability of SF6 self blast circuit breakers depends on the pressure inside the switching chamber at current zero. During each fault current interruption, the arc radiation induces contact and nozzle ablation. The nozzle widening causes reduction of the pressure build-up and thus results in the reduction of the interruption capability. The objective of this work is to use a non-invasive method to assess the degree of nozzle ablation without opening the interrupter and to estimate the degradation of the interruption capability. In this work, the frequency response analysis is applied to detect the change in capacitance due to the change of the geometry inside the circuit breaker interrupter.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"135 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133352643","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: 1
A state-space model of faults with primary arc and soil resistivity effects using Scilab 基于Scilab的具有原生电弧和土壤电阻率效应的断层状态空间模型
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947981
A. Phupol, A. Kunakorn
{"title":"A state-space model of faults with primary arc and soil resistivity effects using Scilab","authors":"A. Phupol, A. Kunakorn","doi":"10.1109/ECTICON.2011.5947981","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947981","url":null,"abstract":"This paper presents a time domain analysis of faults with a primary arc in a power system. The mathematical method used in the analysis is on the basis of a state space technique. The dynamic arc equation and effects of soil resistivities on pole impedances are incorporated into the state space model. The system under the investigation is a distribution system of a Thailand electricity utility with concrete poles. The computer simulation using Scilab, an open source mathematical tool, is developed. It is found that the relationship between the arc current and the variation of the soil resistivities is in a nonlinear function.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133137765","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: 1
Design of a novel microwave diplexer using slit-top mushroom-like units electromagnetic band gap structure and transmission line layer 一种新型微波双工器的设计，该双工器采用裂顶蘑菇状单元电磁带隙结构和传输线层
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947820
A. Yatongchai, R. Wongsan, M. Krairiksh
{"title":"Design of a novel microwave diplexer using slit-top mushroom-like units electromagnetic band gap structure and transmission line layer","authors":"A. Yatongchai, R. Wongsan, M. Krairiksh","doi":"10.1109/ECTICON.2011.5947820","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947820","url":null,"abstract":"This paper presents a multi-bandpass filter using the slit-top mushroom-like on two-layer of electromagnetic band gap (EBG) and transmission line structures. The proposed EBG filter will be utilized as diplexers. The characteristics of this diplexer have been studied by using CST software that was found that it can provide the very good performance. The maximum isolation and minimum insertion loss at the Rx-port when the diplexer operates in Tx-mode are around −40.22 dB and −1.38 dB, respectively. The maximum isolation and minimum insertion loss at the Tx-port in Rx-mode is around −38.42 dB and −0.85 dB, respectively. The bandwidth of Tx-mode and Rx-mode are in the range of 3.646 to 3.715 GHz and 3.141 to 3.214 GHz. This work is the feasibility study of the diplexer design by using EBG technology which can be modified to the other desired frequency bands.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127387196","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
Model structure selection strategy for Wiener model identification with piecewise linearisation 分段线性化维纳模型辨识的模型结构选择策略
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947898
Rattanasin Tanjad, S. Wongsa
{"title":"Model structure selection strategy for Wiener model identification with piecewise linearisation","authors":"Rattanasin Tanjad, S. Wongsa","doi":"10.1109/ECTICON.2011.5947898","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947898","url":null,"abstract":"This paper presents a method for identifying the optimum structure of Wiener model with piecewise linearisation. The number of piecewise linear functions for estimating the static nonlinear and the maximum lag of the linear dynamic part of the Wiener model are selected by cross-validation based approach. The maximum lag and the number of partitions are selected in two subsequence steps. Three popular model selection criteria, i.e. FPE, PRESS, and CP, are considered and compared in the selection process. With the ultimate aim of compensation for nonlinearities in sensors, we have illustrated the feasibility of using the proposed method to compensate hard nonlinearities, such as discontinuous nonlinear and saturation. The results from this work can be used as a guideline of model selection for Wiener model identification and nonlinear compensations of sensor.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115514452","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
Z-source grid-connected inverter for interfacing with photovoltaic cells 用于与光伏电池接口的z源并网逆变器
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947942
A. Pattanaphol, S. Khomfoi, P. Paisuwanna
{"title":"Z-source grid-connected inverter for interfacing with photovoltaic cells","authors":"A. Pattanaphol, S. Khomfoi, P. Paisuwanna","doi":"10.1109/ECTICON.2011.5947942","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947942","url":null,"abstract":"Z-source grid-connected inverter for interfacing with photovoltaic cells is developed in this paper. The application of photovoltaic cell normally faces the shading problem of solar light: this will lead to inconsistent power generation and low system efficiency; therefore, the z-source circuit is applied in grid connected inverter application to improve the boosted dc bus voltage capability. The operation of a z-source grid-connected inverter is explained. The 1-kW prototype the z-source grid connected inverter is demonstrated including simulation and experimental results. The simulation and experimental results illustrate that a z-source inverter is a promising technique to apply in a grid-connected inverter in order to improve the overall grid-connected inverter efficiency and solve the shading problems.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115664507","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
A hybrid genetic algorithm approach for design a service gateway in IP network 基于混合遗传算法的IP网络业务网关设计
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947867
Kanchana Viriyapant, Jeerasak Numpradit, Pongsarun Boonyopakorn
{"title":"A hybrid genetic algorithm approach for design a service gateway in IP network","authors":"Kanchana Viriyapant, Jeerasak Numpradit, Pongsarun Boonyopakorn","doi":"10.1109/ECTICON.2011.5947867","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947867","url":null,"abstract":"A Genetic Algorithm (GA) is an approach to design a network, this is the ultimate solution because traditional heuristics have limited success. This paper covers the analyzing performance problems found in service network gateways (AS), to maximize the admitted traffic flows. We present a hybrid genetic algorithm approach to optimize the summary of admitted traffic where a hybrid GA approach is combined with an order-based genetic algorithm and the greedy algorithm. We then, implement two certain algorithms which are K-center and Greedy to compare the results. In conclusion, the hybrid genetic algorithms show the best performance and yield significant improvements over techniques that only tried to minimize the length of the traffic routes or minimize bandwidth through the gateways.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114734730","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
Estimation of frequency, phase and amplitude of voltage using the continuous genetic algorithm 用连续遗传算法估计电压的频率、相位和幅值
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947938
P. Bedekar, S. Bhide
{"title":"Estimation of frequency, phase and amplitude of voltage using the continuous genetic algorithm","authors":"P. Bedekar, S. Bhide","doi":"10.1109/ECTICON.2011.5947938","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947938","url":null,"abstract":"Frequency and phasor are the most important parameters in power system monitoring, control, and protection. They can reflect the whole power system situation. In electrical power system it is of utmost importance to keep the frequency as close to its nominal value as possible. In order to control the power system frequency it needs to be measured quickly and accurately.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123495793","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
Modification of dummy sub-carriers method to reduce PAPR in OFDM system 改进虚拟子载波方法以降低OFDM系统的PAPR
The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011 Pub Date : 2011-05-17 DOI: 10.1109/ECTICON.2011.5947842
F. Juwono, D. Gunawan
{"title":"Modification of dummy sub-carriers method to reduce PAPR in OFDM system","authors":"F. Juwono, D. Gunawan","doi":"10.1109/ECTICON.2011.5947842","DOIUrl":"https://doi.org/10.1109/ECTICON.2011.5947842","url":null,"abstract":"Orthogonal Frequency Division Multiplexing (OFDM) has been employed in many wireless standards. However, one of the drawbacks of OFDM is high peak-to-average power ratio (PAPR). We propose modification of dummy sub-carriers to reduce the PAPR. We use random dummy signal and multiplication factor to yield better PAPR. The PAPR reduction of about 4 dB at probability of 10−2 is achieved by using 2 dummy sub-carriers.","PeriodicalId":123701,"journal":{"name":"The 8th Electrical Engineering/ Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117232022","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
首页 上一页 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：604180095
Book学术官方微信
小红书