Proceedings of Southcon '95最新文献

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Topical overview of soft-switching PWM high frequency converters 软开关PWM高频转换器的专题概述
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516076
D. Beatty, I. Batarseh
{"title":"Topical overview of soft-switching PWM high frequency converters","authors":"D. Beatty, I. Batarseh","doi":"10.1109/SOUTHC.1995.516076","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516076","url":null,"abstract":"A topical overview of the field of soft-switching PWM DC-DC converters is presented. Over sixty papers published in the 1993-4 have been reviewed and categorized according to the various resonant techniques, control schemes, application requirements or devices used. Also covered are the zero-current and zero-voltage-transition techniques which are at the forefront of research.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116440124","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: 11
Scheduling in third generation wireless networks 第三代无线网络中的调度
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516116
E.G. Barrantes-Sliesarieva, A. F. Lobo
{"title":"Scheduling in third generation wireless networks","authors":"E.G. Barrantes-Sliesarieva, A. F. Lobo","doi":"10.1109/SOUTHC.1995.516116","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516116","url":null,"abstract":"Third generation wireless networks research appears in response to the growing need for any time, anywhere, integrated voice and data services. To support these new user demands, the third generation wireless networks of the future might be quite different from their predecessors. One of the places where changes are expected is in the mechanisms used to share the uplink among the variable composition of isochronous and bursty users in a cell; or, viewed from a different perspective, the mechanisms that schedule the utilization of the pool of uplink transmission slots in a cell. As a first step towards comparing different proposed schemes, this paper presents an enumeration of the desirable properties of schemes for uplink packet scheduling in third generation wireless networks. With this list of desirable properties in mind, we summarize the main characteristics of three of the proposed schemes: PRMA, STDD, and RAMA.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117121595","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
Three-dimensional FEM analysis of a hermetic seal ring design 密封环设计的三维有限元分析
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516126
R. Zhuge, W. Jones
{"title":"Three-dimensional FEM analysis of a hermetic seal ring design","authors":"R. Zhuge, W. Jones","doi":"10.1109/SOUTHC.1995.516126","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516126","url":null,"abstract":"The finite element method is applied to investigate the stress distribution of the seal ring/braze/substrate structures subjected to uniform thermal load in electronic packaging. A three-dimensional investigation is focused on the impact of the seal ring radius on the stress concentration at the corner of a rectangular hermetic package. Nine cases, each with a different seal ring radius, are evaluated in terms of the equivalent stress (Mises) and interfacial stress distributions on the brazing surface at both the seal ring and substrate sides. The investigation has concluded that stress concentration depends mainly on the ratio between the seal ring width, w, and the outer radius, R. An optimized design of the seal ring radius is suggested for the proposed model.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127913873","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
Digital fault simulation and test development using JESIM 使用JESIM进行数字故障仿真和测试开发
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516085
J.W. Root
{"title":"Digital fault simulation and test development using JESIM","authors":"J.W. Root","doi":"10.1109/SOUTHC.1995.516085","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516085","url":null,"abstract":"Too often the efforts of digital IC design verification and test are left until after the design has been completed. Sometimes these efforts are not dedicated until after the silicon has been fabricated. The cost, performance, functionality, speed and reliability of the chip are greatly impacted by the lack of proper requirement and preparation for test. This paper discusses the usefulness of the Digital Event and Test simulator \"JESIM\" for design verification, fault simulation, test vector generation and design for testability.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122289365","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
Synchronous DRAM products evolutionize memory system design 同步DRAM产品革新了存储系统设计
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516079
A. Cosoroaba
{"title":"Synchronous DRAM products evolutionize memory system design","authors":"A. Cosoroaba","doi":"10.1109/SOUTHC.1995.516079","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516079","url":null,"abstract":"Main memory devices, DRAMs, have traditionally quadrupled in size from one generation to the next with limited speed improvements. High speed SRAM caches have usually filled the bandwidth gap between MPU and DRAMs. Designers have recently realized that with the increased software complexity and MPU speed requirements, SRAM caches alone might not be able to provide the ultimate Performance/Cost solution. A new synchronous I/O structure has recently been developed for DRAMs (under the auspices of the joint electronic device engineering council, JEDEC) and set as the new standard for high performance devices called synchronous DRAMs.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"5 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120999286","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
Transport in one-dimensional semiconductor devices 一维半导体器件中的输运
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516080
S. Islam, F. Jain
{"title":"Transport in one-dimensional semiconductor devices","authors":"S. Islam, F. Jain","doi":"10.1109/SOUTHC.1995.516080","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516080","url":null,"abstract":"A novel quantum well wire (QWW) realized in a high electron mobility transistor structure is presented. The QWW structure is incorporated in the design of one-dimensional modulation-doped field-effect transistor (1-D MODFET) and one-dimensional quantum interference transistor (1-D QUIT) structures. Transport characteristics of the AlGaAs-GaAs 1-D MODFET and 1-D QUIT are presented and compared with two-dimensional devices. Our calculations show a significant improvement of the transconductance in one-dimensional transistors compared with their two-dimensional counterparts.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115583276","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
An optimal order structure for 2-D digital filters 二维数字滤波器的最优序结构
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516072
A. Zilouchian, B. Szabo
{"title":"An optimal order structure for 2-D digital filters","authors":"A. Zilouchian, B. Szabo","doi":"10.1109/SOUTHC.1995.516072","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516072","url":null,"abstract":"The model approximation as well as implementation of 2D recursive separable-in-denominator (RSD) digital filters with fixed-point arithmetic are investigated. A minimum-order structure is proposed based on the optimality condition of an error criteria due to both approximation and implementation. In order to reduce the number of multiplications for an optimal order realization, a class of second-order structures is proposed. This class of realizations presents a good compromise between low round-off noise, order reduction, number of multipliers and hardware complexity.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114445629","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
Defense conversion and public transit operations 国防转换和公共交通运营
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516128
G. Mayhew
{"title":"Defense conversion and public transit operations","authors":"G. Mayhew","doi":"10.1109/SOUTHC.1995.516128","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516128","url":null,"abstract":"Via the Technology Reinvestment Program, an existing military integrated position location and communication system based on networked spread spectrum radios is being adapted to satisfy safety critical, operational requirements for train location and control in railroad and transit applications. Radios, installed on-board trains, at wayside locations, and at control stations, participate in a synchronous, time slotted network enabling position location determination in conjunction with reliable transfer of control information.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123178088","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
Storage subsystem workload characterization in a real life personal computer environment 现实生活中的个人计算机环境中的存储子系统工作负载表征
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516105
I. Mahgoub
{"title":"Storage subsystem workload characterization in a real life personal computer environment","authors":"I. Mahgoub","doi":"10.1109/SOUTHC.1995.516105","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516105","url":null,"abstract":"Storage subsystem performance is a critical factor in the overall computer system performance. To evaluate and improve the performance of existing and future storage subsystems for an environment, the workload as seen by the storage subsystem in that environment has to be characterized. In the paper, storage subsystem workload in a real life Netware personal computer environment is traced using the storage subsystem tracing tool (SSTT) introduced in Ali et al. (1992). SSTT is an operating system independent tool which is shown to introduce minimal overhead. Workload characterization is then performed by using analysis tools that have been developed to study important statistical parameters of the traced workload such as logical block address (LBA) frequency, IO request interarrival time frequency, IO request size, and the instantaneous demand on the storage subsystem. Distributions for these important parameters are obtained and analyzed.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126378979","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
Computer-based instruction for the fire services 以计算机为基础的消防教学
Proceedings of Southcon '95 Pub Date : 1995-03-07 DOI: 10.1109/SOUTHC.1995.516091
J. P. Kincaid, S. Williams, K. Juge
{"title":"Computer-based instruction for the fire services","authors":"J. P. Kincaid, S. Williams, K. Juge","doi":"10.1109/SOUTHC.1995.516091","DOIUrl":"https://doi.org/10.1109/SOUTHC.1995.516091","url":null,"abstract":"Firefighters and paramedics in the fire services offer an excellent audience for computer-based instruction (CBI). They are on call for fixed amounts of time, some of which is available for self-paced study. These individuals also must take many hours of mandated courses (e.g. on blood borne pathogens) for which they meet in classrooms and are not available for their regular jobs. Many mandated courses could be covered by CBI at fire stations for substantial savings. Only limited CBI materials for the fire services have reached the commercial market. To meet this need, we are developing a series of CBI packages and testing them working with major fire departments in the Central Florida area. The programs described are: (1) \"Spanish for Public Safety\" an interactive program for PCs which uses digitized voice recordings to provide instruction in key Spanish language phrases useful for public safety personnel; (2) \"Positive Pressure Ventilation\" (PPV) a simulation to educate firefighters about PPV techniques; (3) \"Fire Command Operations\"-a PC-based simulation which offers dynamic interaction and positive feedback; (4) \"Fire Departments Lessons Learned\"-a database program which catalogs critical incidents; and (5) the \"Situational Awareness Training System\" (SATS) which provides training for small and mid-sized fire emergencies.","PeriodicalId":341055,"journal":{"name":"Proceedings of Southcon '95","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130170623","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
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