2012 IEEE Student Conference on Research and Development (SCOReD)最新文献_第2页

Rectangular microstrip patch antenna with EBG structure EBG结构矩形微带贴片天线

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518651

N. Ripin, R. A. Awang, A. A. Sulaiman, N. Baba, S. Subahir

{"title":"Rectangular microstrip patch antenna with EBG structure","authors":"N. Ripin, R. A. Awang, A. A. Sulaiman, N. Baba, S. Subahir","doi":"10.1109/SCORED.2012.6518651","DOIUrl":"https://doi.org/10.1109/SCORED.2012.6518651","url":null,"abstract":"This paper presents a rectangular microstrip patch antenna with EBG structure. The combination of the rectangular microstrip patch antenna fabricated on the top of the substrate Rogers RO3003 with Electromagnetic Band Gap (EBG) structures at the ground plane is proposed to investigate the metamaterial characteristics in antenna design for satellite application. The patch antenna along with the EBG structure is designed to resonate at 7.3 GHz. Simulations and measurements have been carried out to verify the performance of EBG structures in patch antenna. All the simulation and measurement work is done by using Computer Simulation Technology Microwave Studio (CST-MWS) and Vector Network Analyzer (VNA) respectively. Metamaterial characteristics which exhibit negative permittivity and permeability of the proposed EBG structures have been verified using Nicolson-Ross-Weir (NRW) method. As a result of combining the rectangular patch with EBG structure, the bandwidth of the antenna has been increased by 39.63% and the size of the antenna reduced by 22.38% compared to the antenna without EBG. The return loss also met the specification of -10 dB cut off.","PeriodicalId":299947,"journal":{"name":"2012 IEEE Student Conference on Research and Development (SCOReD)","volume":"36 8-12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122128217","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: 30

Recognition system for nasal, lateral and trill arabic phonemes using neural networks 基于神经网络的阿拉伯语鼻音、侧音和颤音识别系统

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518644

N. A. Abdul-Kadir, R. Sudirman, N. Mahmood

{"title":"Recognition system for nasal, lateral and trill arabic phonemes using neural networks","authors":"N. A. Abdul-Kadir, R. Sudirman, N. Mahmood","doi":"10.1109/SCORED.2012.6518644","DOIUrl":"https://doi.org/10.1109/SCORED.2012.6518644","url":null,"abstract":"There has been limited study and research in Arabic phoneme among Malaysians, hence making references to the work and research difficult. Although there have been significant acoustic and phonetic studies on languages such as English, French and Mandarin, to date there are no guidelines or significant findings on Malay language. In this paper, we monitored and analyzed the performance of multi-layer feed-forward with back-propagation (MLFFBP) and cascade-forward (CF) networks on our phoneme recognition system of Standard Arabic (SA). This study focused on Malaysian children as test subjects. Focused on four chosen phonemes from SA, which composed of nasal, lateral and trill behaviors, i.e. tabulated at four different articulation places. Highest training recognition rate for multi-layer and cascade-layer network are 98.8 % and 95.2 % respectively, while the highest testing recognition rate achieved for both networks is 92.9 %. 10-fold cross validation was used to evaluate system performance. The selected network is cascade layer with 40 and 10 hidden neurons in first hidden layer and second hidden layer respectively. The chosen network was used in the GUI designed for developing recognition system with user feedback.","PeriodicalId":299947,"journal":{"name":"2012 IEEE Student Conference on Research and Development (SCOReD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130127942","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: 5

Fast location prediction algorithm utilized in enhancing One Time Password authentication 利用快速位置预测算法增强一次性密码认证

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518642

M. Abedi, M. H. Yazdifar, F. Parsa

{"title":"Fast location prediction algorithm utilized in enhancing One Time Password authentication","authors":"M. Abedi, M. H. Yazdifar, F. Parsa","doi":"10.1109/SCORED.2012.6518642","DOIUrl":"https://doi.org/10.1109/SCORED.2012.6518642","url":null,"abstract":"With the rise of mobile phones and smart phones as a livelihood necessity in recent years, a security engineer's responsibility is to utilize this feature to further secure the existing infrastructure. Mobile phones can attach a geolocation to the phone owner. This geolocation can be located precisely through GPS or less precisely using network triangulation. Smart phones nowadays usually have GPS capabilities but not all phones possess this feature. GPS is precise but consumes more battery life. Triangulation uses nearby cell towers to provide the geolocation and functions at its peak in urban areas with the minimum of three cell towers. This geolocation information can be used to authenticate the clients seamlessly or to complement One Time Passwords (OTP). Volatile passwords have become popular in the past years as well. This is due to their secure nature of not maintaining any stored passwords. OTP complemented with the geolocation information acquired earlier can further improve the security of any mobile client. In this paper a prediction algorithm is evaluated and then a more accurate and faster algorithm is introduced and evaluated.","PeriodicalId":299947,"journal":{"name":"2012 IEEE Student Conference on Research and Development (SCOReD)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133336031","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

Preparation and characterization of bulk nanoporous Sn and SnO2 块状纳米多孔锡、SnO2的制备与表征

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518614

Mohd Lutfi Ahmad Shahar, S. Rais, M. Wahid, M. F. Ahmad

引用次数: 1

Adaptive smart antennas in 3G networks and beyond 3G及以后网络中的自适应智能天线

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518629

A. M. Elmurtada, Y. Awad, M. Elnourani

引用次数: 4

Initial strategy for design and fabrication of microgap electrodes 微间隙电极设计与制造的初步策略

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518612

Q. Humayun, U. Hashim

引用次数: 2

Slow-wave H-plane filter with improved frequency characteristics and reduced size 具有改进的频率特性和减小尺寸的慢波h平面滤波器

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518626

T. Yousefi, N. Komjani

引用次数: 0

Effect of particle size and filler type in polymeric material insulations 颗粒大小和填料类型对高分子材料绝缘材料的影响

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518605

W. A. Izzati, Y. Arief

{"title":"Effect of particle size and filler type in polymeric material insulations","authors":"W. A. Izzati, Y. Arief","doi":"10.1109/SCORED.2012.6518605","DOIUrl":"https://doi.org/10.1109/SCORED.2012.6518605","url":null,"abstract":"Electrical equipments mainly use polymeric material as insulation due to its characteristic of having high resistance to repel/retard electrical discharge attack, thermal conductivity, tree growth, and chemical cavities. Recently, polymer composite has been modified with addition of nano-sized filler instead of the conventional micro-sized filler. It was found that addition of nano-sized filler in polymer composite provides better characteristic if they are prepared and fabricated properly. The interfaces of the filler plays role in determining the behaviour of the polymeric insulation. Addition of different types of filler i.e. silica (SiO2), titania (TiO2), alumina (Al2O3), zinc oxide (ZnO), magnesium oxide (MgO), clay, etc. also gives different dielectric behaviour to polymeric insulation. This paper provides a review on the effect of particle size and types of filler on polymeric material insulation. In attempt to identify the characteristic of these fillers on polymeric insulation, partial discharge (PD) amplitude, erosion depth, breakdown strength, glass transition temperature, and scanning electron microscopy (SEM) images of polymer composite samples are studied. The role of interfaces is also explained.","PeriodicalId":299947,"journal":{"name":"2012 IEEE Student Conference on Research and Development (SCOReD)","volume":"715 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123554423","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: 4

Symmetrical fault detection technique during power swing based on S-Transform 基于s变换的电力摆幅对称故障检测技术

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518601

N. Mohamad, A. F. Abidin, W. Munim, M. Yahya

引用次数: 3

Power quality impact of grid-connected photovoltaic generation system in distribution networks 配电网并网光伏发电系统对电能质量的影响

2012 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2012-12-01 DOI: 10.1109/SCORED.2012.6518600

M. Farhoodnea, A. Mohamed, H. Shareef, H. Zayandehroodi

引用次数: 52