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Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)最新文献

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Wafer bonding technique based GaN/Quantum Dots/GaN system 基于GaN/量子点/GaN系统的晶圆键合技术
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453884
Ying Li, E. Stokes
{"title":"Wafer bonding technique based GaN/Quantum Dots/GaN system","authors":"Ying Li, E. Stokes","doi":"10.1109/SECON.2010.5453884","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453884","url":null,"abstract":"Integration of colloidal semiconductor quantum dots with epitaxial semiconductor materials offers the possibility of a wide variety of new device structures. In this work, wafer bonding processes for layered GaN/Quantum Dots/GaN structures are described. Bonding is achieved by thermal reorganization of bidentate ligand thiophenethiol which initially caps the CdSe/ZnS core/shell quantum dots. Annealing temperature dependent bond strength feature is characterized. Maximum bond strength is achieved after annealing at 350°C. Effect of annealing on quantum dot photoluminescence is also investigated.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114719194","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
Impact of leakage and short circuit current in rush current analysis of power gated domains 漏电流和短路电流对功率门控域涌流分析的影响
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453925
V. Sreekumar, S. Ravichandran
{"title":"Impact of leakage and short circuit current in rush current analysis of power gated domains","authors":"V. Sreekumar, S. Ravichandran","doi":"10.1109/SECON.2010.5453925","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453925","url":null,"abstract":"Power shut off being a key technique for power reduction in today's designs, it is critical to be able to verify circuit behavior when it is powered from an off state to an on state. The total rush current and turn-on time of the module can be impacted by the high short circuit current caused by slow signal slew rates and the leakage current of the module. In this paper, we present a study on how these effects impact the overall analysis and how they can be accounted for during a power-up analysis. The analysis has been done on ARM 968 processor based Wireless LAN IC.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128681800","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
Background service QoS in a UMTS network UMTS网络的后台服务QoS
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453883
Ira Weissberger, I. Kostanic, C. Otero
{"title":"Background service QoS in a UMTS network","authors":"Ira Weissberger, I. Kostanic, C. Otero","doi":"10.1109/SECON.2010.5453883","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453883","url":null,"abstract":"This paper presents a methodology for evaluating the quality of service provided by a cellular network for background services, such as e-mail and text messaging. Data collected from drive testing were used as the means to evaluate different drive routes on a Universal Mobile Telecommunications System (UMTS) network. Although one type of cellular network was tested, this methodology may be readily adapted to fit other types of cellular networks.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130539145","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: 10
Linewidth enhancement factor simplified 线宽增强系数简化
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453864
Weiguo Yang
{"title":"Linewidth enhancement factor simplified","authors":"Weiguo Yang","doi":"10.1109/SECON.2010.5453864","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453864","url":null,"abstract":"The dependence of laser linewidth on the laser power without taking into considerations of the laser AM-FM coupling effects, namely the Schawlow-Townes linewidth, can be derived by taking the laser as a self-consistent feedback system. Without employing a full quantum statistical analysis of the semiconductor laser noises, we extend this intuitive approach to include the effects of the laser AM-FM coupling on the laser amplitude noise as well as the laser phase noise. Then by using Fourier transform arguments, we arrive at the laser linewidth and the linewidth enhancement factor which agree with the results from the authoritative quantum statistics theory. This fully classic presentation simplifies the derivation of the laser linewidth enhancement factor and is suitable for undergraduate teaching of laser electronics.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"238 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131032339","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
Real-time MISO UWB radio testbed and waveform design 实时MISO超宽带无线电试验台及波形设计
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453889
Yu Song, Zhen Hu, N. Guo, R. Qiu
{"title":"Real-time MISO UWB radio testbed and waveform design","authors":"Yu Song, Zhen Hu, N. Guo, R. Qiu","doi":"10.1109/SECON.2010.5453889","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453889","url":null,"abstract":"The paper presents the design challenges and implementation issues of a real-time multiple-input single-output (MISO) ultra-wideband (UWB) radio testbed, which involves Xinlix Virtex-5 Field Programmable Gate Array (FPGA) for high speed signal processing. In addition, waveform design and optimization based on the testbed is practical studied. System performance is evaluated using measured channel data in indoor environment. The transmitted MISO signals are optimized in the passband with a bandwidth up to 500MHz. Major contributions of our work include implementation of a real-time radio testbed for multiple-antenna wideband system and design of intrinsic waveform diversity based on the testbed.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122643465","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
Undergraduate research experiences in power system fault analysis using Matlab Simulation tools 本科期间有使用Matlab仿真工具进行电力系统故障分析的研究经验
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453891
B. Casey, Y. Liao
{"title":"Undergraduate research experiences in power system fault analysis using Matlab Simulation tools","authors":"B. Casey, Y. Liao","doi":"10.1109/SECON.2010.5453891","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453891","url":null,"abstract":"This paper presents research experiences of an undergraduate student in areas of power system fault analysis and fault location. The student obtains valuable skills by using Matlab and SimPowerSystems software, and an in-depth understanding of short-circuit analysis theories and procedures. It is shown that research involving formula derivation, system modeling, algorithm coding, and result visualization can greatly enhance the student's interests in power system subject.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124077900","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
Simulation of agent behavior in a goal finding application 目标查找应用程序中agent行为的模拟
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453811
Sharad Sharma, Supriya Lohgaonkar
{"title":"Simulation of agent behavior in a goal finding application","authors":"Sharad Sharma, Supriya Lohgaonkar","doi":"10.1109/SECON.2010.5453811","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453811","url":null,"abstract":"There has been increasing interest in simulation of agent behavior in the context of agent based modeling. This paper concentrates on the use of fuzzy logic in simulating agent based behavior. Our approach is decomposed into two levels. The higher level addresses the agent's goal finding behavior and lower level addresses collision detection and avoidance behavior. Our approach focuses on modeling individual behavior as well as group behavior. Individuals constantly adjust their behavior according to the dynamic factors in the environment. We hypothesize that people with similar characteristics such as race, age, and gender are more likely to collaborate with each other in order to reach a goal. This paper describes an agent based system implementation for crowd behavior. The simulation evaluates different evacuation and damage control decision making strategies beforehand, which allows the execution of the most effective evacuation scheme during real-time emergency scenario.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117188323","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
Time synchronization in wireless sensor networks: A survey 无线传感器网络中的时间同步:综述
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453878
Sami M. Lasassmeh, J. Conrad
{"title":"Time synchronization in wireless sensor networks: A survey","authors":"Sami M. Lasassmeh, J. Conrad","doi":"10.1109/SECON.2010.5453878","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453878","url":null,"abstract":"Wireless sensor networks consist of small devices distributed over geographical area. Each one of these devices has sensing, computing, and communicating components. Wireless sensor networks are used in many applications where partial or full time synchronization in the network is required. Time synchronization aims at equalizing the local times for all nodes in the network, if necessary. Since wireless sensor networks are limited in energy resources, computation capability, storage capacity, and bandwidth, traditional time synchronization algorithms like Network Time Protocol (NTP) and Global Positioning System (GPS) are impractical to synchronize the network. This paper explains the time synchronization problem in wireless sensor networks and details the basic algorithms proposed in this area.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117225785","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: 64
Enhancing student learning in artificial intelligence using robotics 利用机器人技术加强学生在人工智能方面的学习
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453897
R. Stansbury
{"title":"Enhancing student learning in artificial intelligence using robotics","authors":"R. Stansbury","doi":"10.1109/SECON.2010.5453897","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453897","url":null,"abstract":"Artificial intelligence (AI) techniques may be applied to a variety of real-world problems. At Embry-Riddle Aeronautical University, CS 455: Artificial Intelligence was offered during the Spring 2008 semester in which students from all disciplines were invited to attend. Robot kits are incorporated into the course as a pedagogical tool to motivate and encourage learning by applying theoretically abstract algorithms to concrete real-world problems. This paper discusses the approach to incorporating robotics in the AI classroom. A set of commercial off-the-shelf robot kits are discussed and analyzed with respect to the students' work during the semester. Finally, recommendations for improvements on teaching AI to a multi-disciplinary audience with the help of robot kits will be discussed.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132327863","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
Protection of medium voltage DC power systems against ground faults and negative incremental impedances 中压直流电力系统对接地故障和负增量阻抗的保护
Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon) Pub Date : 2010-03-18 DOI: 10.1109/SECON.2010.5453874
U. Ghisla, I. Kondratiev, R. Dougal
{"title":"Protection of medium voltage DC power systems against ground faults and negative incremental impedances","authors":"U. Ghisla, I. Kondratiev, R. Dougal","doi":"10.1109/SECON.2010.5453874","DOIUrl":"https://doi.org/10.1109/SECON.2010.5453874","url":null,"abstract":"Widespread concern about how to protect DC power distribution systems against high fault currents, and how to compensate for instabilities brought on by constant power load characteristics, has prompted us to develop a new approach for protecting these systems. Our approach employs a compact multiple switching topology converter, which fulfills three functions: it limits the line current to a predetermined value (which could be dynamically set); it works as buffer during short-duration faults on the power bus; and it compensates load instabilities that could arise due to the constant power characteristic of a load. The structure of the protection circuit, its positioning in the distribution network, its possible configurations, control strategies, and parameters selection will all be shown. Analysis of the performances and feasibility of the approach will be presented.","PeriodicalId":286940,"journal":{"name":"Proceedings of the IEEE SoutheastCon 2010 (SoutheastCon)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133071541","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: 13
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