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Reconfigurable fully differential first order all pass filter using digitally controlled CMOS DVCC 可重构全差分一阶全通滤波器使用数字控制的CMOS DVCC
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060082
I. A. Khan, M. I. Masud, S. A. Moiz
{"title":"Reconfigurable fully differential first order all pass filter using digitally controlled CMOS DVCC","authors":"I. A. Khan, M. I. Masud, S. A. Moiz","doi":"10.1109/IEEEGCC.2015.7060082","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060082","url":null,"abstract":"The paper presents a reconfigurable fully differential all pass filter based on CMOS differential voltage current conveyor. The proposed topology uses two differential voltage current conveyors along with two resistors and two capacitors. The phase angle of the realized fully differential all pass filter can be controlled through an n-bit digital control word. Thus the proposed filter topology provides increased immunity to external noise, reduced even-order harmonics, high resolution capability and reconfigurability. The proposed filter circuit is simulated by using PSPICE. The results thus obtained justify the theory.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114216406","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
Geometrical approach for wind farm symmetrical layout design optimization 风电场对称布局设计优化的几何方法
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060014
S. Al-Yahyai, Y. Charabi, A. Gastli
{"title":"Geometrical approach for wind farm symmetrical layout design optimization","authors":"S. Al-Yahyai, Y. Charabi, A. Gastli","doi":"10.1109/IEEEGCC.2015.7060014","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060014","url":null,"abstract":"Wind farm layout orientation plays an important factor to reduce the total wake loss and hence increase the capacity factor of the wind farm. Different wind farms layout design optimization techniques are widely used and classified into five different types including, Pattern Search Algorithm (PSAs), Gradient Search Algorithms (GSAs), Greedy Heuristic Algorithms (GHAs), Simulated Annealing Algorithms (SAAs), and Genetic Algorithms (GAs). The quality of the optimized solution depends on the complexity of the used algorithm. This paper proposes a simple geometrical approach which can be easily used by designers in setting their initial layout which will save significant computational time during the design optimization process. It considers symmetrical wind farm layouts which satisfy visual environmental constraints. The proposed approach shows that the optimum wind farm layout is displaced around 18o from the predominant wind median axis. Validation of the proposed approach is also presented for three sites in the Sultanate of Oman using the European computer program “Wind Atlas Analysis and Application Program (WAsP)”.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116865312","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
Load model effect on distributed generation allocation and feeders' reconfiguration in unbalanced distribution systems 不平衡配电系统中负荷模型对分布式发电分配和馈线重构的影响
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060021
A. Zidan, R. Al-Abri, E. El-Saadany
{"title":"Load model effect on distributed generation allocation and feeders' reconfiguration in unbalanced distribution systems","authors":"A. Zidan, R. Al-Abri, E. El-Saadany","doi":"10.1109/IEEEGCC.2015.7060021","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060021","url":null,"abstract":"Limitation of fossil fuels and the environmental constraints established by the Kyoto Protocol and other governmental initiatives caused the allocation of distributed generation (DG) to be a vital pillar in power system planning. Improper selection of the sizing and siting of DG systems can reduce their advantages. Network reconfiguration problem is to find a best configuration of distribution systems that gives minimum energy loss with satisfying the imposed operating constraints. This paper investigates the effect of load model on DG allocation and network reconfiguration problems. The proposed algorithm implemented and tested on the 25-bus unbalanced distribution system and the impact of load models is demonstrated. The constraints involved include voltage limits, line current limits, and radial topology.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131735267","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: 6
Study of a microstrip patch antenna with multiple circular slots for portable devices 便携式多圆槽微带贴片天线的研究
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060037
Waqas Farooq, M. Ur-Rehman, Q. Abbasi, Khawaja Qasim Maqbool, K. Qaraqe
{"title":"Study of a microstrip patch antenna with multiple circular slots for portable devices","authors":"Waqas Farooq, M. Ur-Rehman, Q. Abbasi, Khawaja Qasim Maqbool, K. Qaraqe","doi":"10.1109/IEEEGCC.2015.7060037","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060037","url":null,"abstract":"This paper presents the design and study of a high performance microstrip rectangular patch antenna for the 2.5 GHz ISM band. The proposed antenna make use of small multiple circular slots embedded in the radiator to enhance the performance of the traditional patch antenna. Introduction of the new multi-slot arrangement offers a low profile antenna with reduced size, improved impedance matching, broadband operation. A comparatively wider -10 dB impedance bandwidth of 95 MHz is achieved. The maximum achievable gain is 6.8 dBi.Good performance, light weight, mechanically rugged and inexpensive design make this antenna a potential candidate for wireless portable devices.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131910535","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: 6
Collective assessment pattern toward ABET accreditation of the ECE program at SQU SQU ECE项目ABET认证的集体评估模式
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060019
F. Mnif, J. Jervase, M. Ould-Khaoua, N. Hosseinzadeh
{"title":"Collective assessment pattern toward ABET accreditation of the ECE program at SQU","authors":"F. Mnif, J. Jervase, M. Ould-Khaoua, N. Hosseinzadeh","doi":"10.1109/IEEEGCC.2015.7060019","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060019","url":null,"abstract":"In this paper, the design and implementation of a systematic process for students outcomes (SO) assessment in the Electrical and Computer Engineering (ECE) program at Sultan Qaboos University (SQU) in Oman is described. Unlike most programs aiming for ABET accreditation, the process is based on a collective and acquiescent approach that involves most of the program faculty members: All Faculty members take part in the assessment of SOs pooled among selected program courses, while a majority of faculty members take part in the evaluation process. For this end different group of faculty members have been formed namely: Student Outcomes Champions composed of 11 faculty members each of those is coordinating an SO focus group. Each SO focus group is composed of three to four members that coordinate the evaluation of one SO. Moreover for each course, course focus groups composed of three to four members are formed to take the responsibility of implementing the recommendations on the respective courses.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123295469","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
Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study 个人电脑屏蔽罩内气流开口的电磁干扰辐射:一项实验研究
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060017
M. Bait-Suwailam, D. Al-Abri, Abbas E. Teirab, J. Jervase, Z. Nadir
{"title":"Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study","authors":"M. Bait-Suwailam, D. Al-Abri, Abbas E. Teirab, J. Jervase, Z. Nadir","doi":"10.1109/IEEEGCC.2015.7060017","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060017","url":null,"abstract":"In this paper, electromagnetic radiation leakage through airflow openings found in modern personal computers and mobile electronic devices (i.e., enclosures) is experimentally studied in the low frequency regime. Three different designs of enclosure's covers are assessed through experimental work. The three airflow covers of the shielding enclosure cases comprise the use of all holes (case 1), hexagon (case 2), slotted cover (case 3), and a reference case of a solid cover with no openings. Comparison is then made between the designed covers in reference to the solid cover that mimics a closed enclosure. The measurements are conducted based on capturing the amount of power transfer, through the transmission coefficient S21 , in both near vicinity and far-region from the enclosure's opening. It was found that hexagonal airflow cover provides better shielding effectiveness than cases 1 and 3, especially in the near-vicinity region to the enclosure.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123285757","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
Maximum power tracking of a grid-connected wind-driven Brushless Doubly-Fed Reluctance Generator using scalar control 采用标量控制的并网风力无刷双馈磁阻发电机最大功率跟踪
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060046
M. Mousa, S. M. Allam, E. Rashad
{"title":"Maximum power tracking of a grid-connected wind-driven Brushless Doubly-Fed Reluctance Generator using scalar control","authors":"M. Mousa, S. M. Allam, E. Rashad","doi":"10.1109/IEEEGCC.2015.7060046","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060046","url":null,"abstract":"This paper presents a scalar volt per hertz (v/f) control technique for maximum power tracking of a grid-connected wind-driven Brushless Doubly-Fed Reluctance Generator (BDFRG). The proposed generator has two stator windings namely; power winding, directly connected to the grid, and control winding, connected to the grid through a bi-directional converter. The presented control technique is based on the abc-axis and dq-axis dynamic model of BDFRG. A detailed abc-axis and dq-axis dynamic model, by which the dynamic behaviour of the BDFRG can be successfully predicted under different operating conditions, is presented. In addition, a soft starting method is suggested to avoid the over-current of the bi-directional converter. The presented simulation results ensure the effectiveness of the proposed control strategy for maximum wind-power extraction under wind-speed variations.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122087193","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: 16
Brain tumor segmentation using Cuckoo Search optimization for Magnetic Resonance Images 利用杜鹃搜索优化磁共振图像的脑肿瘤分割
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060024
E. Ben George, G. Rosline, D. Rajesh
{"title":"Brain tumor segmentation using Cuckoo Search optimization for Magnetic Resonance Images","authors":"E. Ben George, G. Rosline, D. Rajesh","doi":"10.1109/IEEEGCC.2015.7060024","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060024","url":null,"abstract":"Nature enthused algorithms are the most potent for optimization. Cuckoo Search (CS) algorithm is one such algorithm which is efficient in solving optimization problems in varied fields. This paper appraises the basic concepts of cuckoo search algorithm and its application towards the segmentation of brain tumor from the Magnetic Resonance Images (MRI). The human brain is the most complex structure where identifying the tumor like diseases are extremely challenging because differentiating the components of the brain is complex. The tumor may sometimes occur with the same intensity of normal tissues. The tumor, edema, blood clot and some part of brain tissues appear as same and make the work of the radiologist more complex. In general the brain tumor is detected by radiologist through a comprehensive analysis of MR images, which takes substantially a longer time. The key inventiveness is to develop a diagnostic system using the best optimization technique called the cuckoo search, that would assist the radiologist to have a second opinion regarding the presence or absence of tumor. This paper explores the CS algorithm, performing a profound study of its search mechanisms to discover how it is efficient in detecting tumors and compare the results with the other commonly used optimization algorithms.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130599904","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: 26
Human attention-based regions of interest extraction using computational intelligence 基于计算智能的基于人类注意力的兴趣区域提取
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060025
Mohammad A. N. Al-Azawi, Yingjie Yang, H. Istance
{"title":"Human attention-based regions of interest extraction using computational intelligence","authors":"Mohammad A. N. Al-Azawi, Yingjie Yang, H. Istance","doi":"10.1109/IEEEGCC.2015.7060025","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060025","url":null,"abstract":"Machine vision is still a challenging topic and attracts researchers to carry out researches in this field. Efforts have been placed to design machine vision systems (MVS) that are inspired by human vision system (HVS). Attention is one of the important properties of HVS, with which the human can focus only on part of the scene at a time; regions with more abrupt features attract human attention more than other regions. This property improves the speed of HVS in recognizing and identifying the contents of a scene. In this paper, we will discuss the human attention and its application in MVS. In addition, a new method of extracting regions of interest and hence interesting objects from the images is presented. The new method utilizes neural networks as classifiers to classify important and unimportant regions.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124431194","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 detailed tuning evaluation of sensitivity threshold using LNRT for bad data detection in state estimation 利用LNRT对状态估计中不良数据检测的灵敏度阈值进行了详细的调优评估
2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060099
Abubeker Alamin, J. Peng
{"title":"A detailed tuning evaluation of sensitivity threshold using LNRT for bad data detection in state estimation","authors":"Abubeker Alamin, J. Peng","doi":"10.1109/IEEEGCC.2015.7060099","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060099","url":null,"abstract":"The sensitivity threshold, using largest normalized residual test, was often chosen based on past experience without proper technical understanding. Hence, the aim of this paper was to systematically investigate the variation of the sensitivity threshold when bad data of various magnitudes were individually injected into each measurement. Subsequently, the relationship between bad data and sensitivity threshold could be observed. Moreover, the relationship of sensitivity threshold with the redundancy of measurements were also analyzed. Two test cases were built using IEEE 14 bus test system. Simulations results demonstrated that minimum sensitivity threshold should not be fixed as is the case currently.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129735603","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
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