Pub Date : 2014-10-16DOI: 10.1109/IEECON.2014.6925948
R. Wongsan, P. Krachodnok, P. Kamphikul
Gain improvement of a sector antenna of base station for mobile phone using microstrip antenna (MSA) array with curved woodpile Electromagnetic Band Gap (EBG) is presented. The advantages of this proposed antenna are easy fabrication and installation, high gain, and light weight. Moreover, it provides a fan-shaped radiation pattern and wider in the horizontal direction, which appropriate for mobile phone base station. The half-power beam widths in the H-plane and E-plane are 40 and 8 degrees, respectively. The paper also presents the design procedures of a 1×8 array antenna using MSAs associated with U-shaped reflector for decreasing their back and side lobes. A Computer Simulation Technology (CST) software has been used to compute the reflection coefficient (S11), radiation patterns, and gain of this antenna. The bandwidth, at S11 (-10 dB), is enough which can be well utilized for 3G base station, with a gain 20 dB.
{"title":"Gain improvement of MSAs array by using curved woodpile EBG and U-shaped reflector","authors":"R. Wongsan, P. Krachodnok, P. Kamphikul","doi":"10.1109/IEECON.2014.6925948","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925948","url":null,"abstract":"Gain improvement of a sector antenna of base station for mobile phone using microstrip antenna (MSA) array with curved woodpile Electromagnetic Band Gap (EBG) is presented. The advantages of this proposed antenna are easy fabrication and installation, high gain, and light weight. Moreover, it provides a fan-shaped radiation pattern and wider in the horizontal direction, which appropriate for mobile phone base station. The half-power beam widths in the H-plane and E-plane are 40 and 8 degrees, respectively. The paper also presents the design procedures of a 1×8 array antenna using MSAs associated with U-shaped reflector for decreasing their back and side lobes. A Computer Simulation Technology (CST) software has been used to compute the reflection coefficient (S11), radiation patterns, and gain of this antenna. The bandwidth, at S11 (-10 dB), is enough which can be well utilized for 3G base station, with a gain 20 dB.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128472287","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 : 2014-10-16DOI: 10.1109/IEECON.2014.6925890
Y. Chau
A novel design of a dielectric hole plasmonic nanoantenna is proposed and investigated by using a finite element method with three-dimensional calculations. The proposed nanoantenna is composed of two identical hollow nanometal filled dielectric media inside the central part. We examine the influence of the shell thickness, gap width and dielectric media filled inside the hollows on the antenna resonance conditions. Through these simulations, we show that it is possible to tune a plasmonic nanoantenna with a constant length over a broad spectral range.
{"title":"Design of a dielectric hole plasmonic nanoantenna with broad wavelength range","authors":"Y. Chau","doi":"10.1109/IEECON.2014.6925890","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925890","url":null,"abstract":"A novel design of a dielectric hole plasmonic nanoantenna is proposed and investigated by using a finite element method with three-dimensional calculations. The proposed nanoantenna is composed of two identical hollow nanometal filled dielectric media inside the central part. We examine the influence of the shell thickness, gap width and dielectric media filled inside the hollows on the antenna resonance conditions. Through these simulations, we show that it is possible to tune a plasmonic nanoantenna with a constant length over a broad spectral range.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114351617","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 : 2014-10-16DOI: 10.1109/IEECON.2014.6925884
Nattapol Sa-ngawong, I. Ngamroo
This paper proposes a smart photovoltaic (PV) generator equipped with the Sugeno fuzzy logic controller (SFLC) for load frequency control (LFC) in a loop interconnected power system. With high computation efficient and without time consuming in defuzzification, the SFLC is used to quickly control the AC power output of the PV inverter so that the system frequency deviation is alleviated. Since the solar insolation change and system frequency deviation are used as the input signals, the SFLC can suitably adapt its control performance. Simulation results in a three-area loop interconnected power system confirm that the PV with the proposed SFLC not only effectively alleviates the fluctuation of system frequency and tie-line power flow, but also supply output power near the maximum power point during frequency control. Besides, the control effect of PV with SFLC is superior to that of the PV with maximum power point tracking control under random solar insolations and load changes.
{"title":"Sugeno fuzzy logic control-based smart PV generators for frequency control in loop interconnected power systems","authors":"Nattapol Sa-ngawong, I. Ngamroo","doi":"10.1109/IEECON.2014.6925884","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925884","url":null,"abstract":"This paper proposes a smart photovoltaic (PV) generator equipped with the Sugeno fuzzy logic controller (SFLC) for load frequency control (LFC) in a loop interconnected power system. With high computation efficient and without time consuming in defuzzification, the SFLC is used to quickly control the AC power output of the PV inverter so that the system frequency deviation is alleviated. Since the solar insolation change and system frequency deviation are used as the input signals, the SFLC can suitably adapt its control performance. Simulation results in a three-area loop interconnected power system confirm that the PV with the proposed SFLC not only effectively alleviates the fluctuation of system frequency and tie-line power flow, but also supply output power near the maximum power point during frequency control. Besides, the control effect of PV with SFLC is superior to that of the PV with maximum power point tracking control under random solar insolations and load changes.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131126458","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 : 2014-10-16DOI: 10.1109/IEECON.2014.6925967
S. Chaitusaney
As known, the integration of Renewable Energy (RE) and Distributed Generation (DG) is increased dramatically at present. This may bring about adverse impacts on electric power grid. Therefore, this paper presents the key issues for the integration of RE/DG into electric power grid, especially in Thailand. The main factors involving in RE/DG impacts on power system is summarized. In addition, the grid code requirements with respect to the mentioned factors are analyzed. Finally, in the discussion, steps for resolving the problem and an example for future consideration are proposed.
{"title":"Key Issues for integration of Renewable Energy and Distributed Generation into Thailand power grid","authors":"S. Chaitusaney","doi":"10.1109/IEECON.2014.6925967","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925967","url":null,"abstract":"As known, the integration of Renewable Energy (RE) and Distributed Generation (DG) is increased dramatically at present. This may bring about adverse impacts on electric power grid. Therefore, this paper presents the key issues for the integration of RE/DG into electric power grid, especially in Thailand. The main factors involving in RE/DG impacts on power system is summarized. In addition, the grid code requirements with respect to the mentioned factors are analyzed. Finally, in the discussion, steps for resolving the problem and an example for future consideration are proposed.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124030759","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 : 2014-03-19DOI: 10.1109/IEECON.2014.6925937
Abhishek Das, A. Kar, D. Bhattacharyya
Invasive uterine cervical cancer is a prevalent cause of cancer-related mortality and morbidity among women in the developing world. In this paper, a survey of current image segmentation methods and their possible applications to identify Cervical Intraepithelial Neoplasia (CIN) are discussed. Approaches to Cervix image segmentation and analysis are discussed. A very efficient algorithm for segmentation of abnormal regions of cancerous cervical lesions is developed, verified and compared with other existing methodologies. Several image processing methodologies and mathematical operations are exploited and applied to this research work. Although the success of the applied algorithms is highly dependent on the quality of the images used, statistical results regarding the feature extraction, running time and pattern classification are obtained and found to be quite satisfactory. This efficient automatic segmentation and pattern classification methodology will highly append content based image retrieval from database of cervix image and has the potential of playing a significant role to the development of an image-based screening tool for Cervical Cancer.
{"title":"Detection of abnormal regions of precancerous lesions in digitised uterine Cervix images","authors":"Abhishek Das, A. Kar, D. Bhattacharyya","doi":"10.1109/IEECON.2014.6925937","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925937","url":null,"abstract":"Invasive uterine cervical cancer is a prevalent cause of cancer-related mortality and morbidity among women in the developing world. In this paper, a survey of current image segmentation methods and their possible applications to identify Cervical Intraepithelial Neoplasia (CIN) are discussed. Approaches to Cervix image segmentation and analysis are discussed. A very efficient algorithm for segmentation of abnormal regions of cancerous cervical lesions is developed, verified and compared with other existing methodologies. Several image processing methodologies and mathematical operations are exploited and applied to this research work. Although the success of the applied algorithms is highly dependent on the quality of the images used, statistical results regarding the feature extraction, running time and pattern classification are obtained and found to be quite satisfactory. This efficient automatic segmentation and pattern classification methodology will highly append content based image retrieval from database of cervix image and has the potential of playing a significant role to the development of an image-based screening tool for Cervical Cancer.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124440397","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 : 2014-03-19DOI: 10.1109/IEECON.2014.6925939
K. Worrasangasilpa, P. Netrakom, A. Surarerks
Many researches in computer arithmetic domain concerns how computational time can be speeded up. They focused on introducing high speed computing techniques. However, the computation may not always produce the exact value. Flexible interval representation system was introduced for solving such problems. Our previous work showed that addition in parallel can be performed in this system by considering the addition of odd and even digits separately. In this paper, we focus on how to improve the algorithm by reducing the number of addition steps. We propose a novel parallel digit-set conversion algorithm which can be used for performing addition together with the proof of correctness for flexible interval representation system.
{"title":"Fast digit-set conversion for flexible interval representation system","authors":"K. Worrasangasilpa, P. Netrakom, A. Surarerks","doi":"10.1109/IEECON.2014.6925939","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925939","url":null,"abstract":"Many researches in computer arithmetic domain concerns how computational time can be speeded up. They focused on introducing high speed computing techniques. However, the computation may not always produce the exact value. Flexible interval representation system was introduced for solving such problems. Our previous work showed that addition in parallel can be performed in this system by considering the addition of odd and even digits separately. In this paper, we focus on how to improve the algorithm by reducing the number of addition steps. We propose a novel parallel digit-set conversion algorithm which can be used for performing addition together with the proof of correctness for flexible interval representation system.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125300362","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 : 2014-03-19DOI: 10.1109/IEECON.2014.6925899
T. Klayklueng, S. Dechanupaprittha
This paper presents analysis of voltage unbalance impact of EVs charging on a LV distribution system. Simulation model and analysis in DIgSILENT program is divided into three case studies i.e. balance, phase A only and random EVs charging. This impact assessment is based on the PEA's big cities power system planning criteria 2013. Simulation results show that, phase A only charged has the voltage unbalance more than random charged by 3.44 times. In addition, the feeder has voltage unbalance more than LV distribution transformer by 1.47 times. However, it has no effect to voltage unbalance in case of balance charging. In addition, the voltage unbalance ratio and trend rise at all positions in the system and all case studies with all initial values of the system voltage unbalance analysis.
{"title":"Impact analysis on voltage unbalance of EVs charging on a low voltage distribution system","authors":"T. Klayklueng, S. Dechanupaprittha","doi":"10.1109/IEECON.2014.6925899","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925899","url":null,"abstract":"This paper presents analysis of voltage unbalance impact of EVs charging on a LV distribution system. Simulation model and analysis in DIgSILENT program is divided into three case studies i.e. balance, phase A only and random EVs charging. This impact assessment is based on the PEA's big cities power system planning criteria 2013. Simulation results show that, phase A only charged has the voltage unbalance more than random charged by 3.44 times. In addition, the feeder has voltage unbalance more than LV distribution transformer by 1.47 times. However, it has no effect to voltage unbalance in case of balance charging. In addition, the voltage unbalance ratio and trend rise at all positions in the system and all case studies with all initial values of the system voltage unbalance analysis.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122707410","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 : 2014-03-19DOI: 10.1109/IEECON.2014.6925958
A. Boonpoonga, P. Sirisuk, M. Krairiksh
This paper presents a review of an adaptive array antenna using a constant modulus algorithm (CMA) in implementation aspect. MAC and parallel architectures of the CMA processing unit for the adaptive antenna are discussed. The CMA processing units based on MAC or parallel architecture is implemented on field programmable gate array (FPGA). The effect of floating-point and fixed-point arithmetic on the performance of the CMA processing unit is also discussed. Finally, the FPGA resource utilization and maximum operating clock frequency are shown.
{"title":"On FPGA implementation of blind adaptive antenna","authors":"A. Boonpoonga, P. Sirisuk, M. Krairiksh","doi":"10.1109/IEECON.2014.6925958","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925958","url":null,"abstract":"This paper presents a review of an adaptive array antenna using a constant modulus algorithm (CMA) in implementation aspect. MAC and parallel architectures of the CMA processing unit for the adaptive antenna are discussed. The CMA processing units based on MAC or parallel architecture is implemented on field programmable gate array (FPGA). The effect of floating-point and fixed-point arithmetic on the performance of the CMA processing unit is also discussed. Finally, the FPGA resource utilization and maximum operating clock frequency are shown.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122194000","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 : 2014-03-19DOI: 10.1109/IEECON.2014.6925866
M.S. Mahmud, P. Meesad
Stock market analysis is very important not only for making profit or averting big losses, but also to recognize the direction of the market. The direction point of the market has significant effects on capital investment, other business cycle issues and socio-economical level of the country. This study proposes a new approach for stock market price prediction using recurrent error based neuro-fuzzy system with momentum (RENFSM). The experiment found that the proposed model can provide superior performance for stock market price prediction than ANFIS and traditional recurrent type ANFIS networks.
{"title":"Time series stock price prediction using recurrent error based neuro-fuzzy system with momentum","authors":"M.S. Mahmud, P. Meesad","doi":"10.1109/IEECON.2014.6925866","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925866","url":null,"abstract":"Stock market analysis is very important not only for making profit or averting big losses, but also to recognize the direction of the market. The direction point of the market has significant effects on capital investment, other business cycle issues and socio-economical level of the country. This study proposes a new approach for stock market price prediction using recurrent error based neuro-fuzzy system with momentum (RENFSM). The experiment found that the proposed model can provide superior performance for stock market price prediction than ANFIS and traditional recurrent type ANFIS networks.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114787980","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 : 2014-03-19DOI: 10.1109/IEECON.2014.6925837
Nattapong Jundang, Surachai Ongkittikul
This paper presents the method of image texture recognition by Volume Trace Transform-VTT, based on several Trace function. All of 10 trace functions will be selected by the reinforcement learning process and constructed to produce noticeable features. The next process is to sum the results of each function together by “NDFT - Neighbor Discriminant Feature Transform”, this process will all the results from the different positions of image results and construct 2-D histogram. The histogram is evaluated by chi-square statistic test and the process works on the basis of brodatz texture and vision texture database.
{"title":"Rotation invariant texture recognition by using Neighbor Discriminant Feature Transform and reinforcement learning","authors":"Nattapong Jundang, Surachai Ongkittikul","doi":"10.1109/IEECON.2014.6925837","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925837","url":null,"abstract":"This paper presents the method of image texture recognition by Volume Trace Transform-VTT, based on several Trace function. All of 10 trace functions will be selected by the reinforcement learning process and constructed to produce noticeable features. The next process is to sum the results of each function together by “NDFT - Neighbor Discriminant Feature Transform”, this process will all the results from the different positions of image results and construct 2-D histogram. The histogram is evaluated by chi-square statistic test and the process works on the basis of brodatz texture and vision texture database.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127950880","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：