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Proceedings of WESCON'95最新文献

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Medical magnetic source imaging 医用磁源成像
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485482
T. Roberts
{"title":"Medical magnetic source imaging","authors":"T. Roberts","doi":"10.1109/WESCON.1995.485482","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485482","url":null,"abstract":"Magnetic resonance imaging of the brain provides the clinical radiologist with exquisite anatomic detail of the patient's intracranial structures. Many gross pathological conditions are identifiable either by recognition of associated morphological or contrast-related changes. Angiography provides intricate depiction of intracranial vasculature and again provides vital diagnostic information related to abnormal cerebral blood supply. However, even with these techniques, we are left ignorant of functional organization and tissue viability. Half a century ago, Penfield and others proposed a homuncular cortical organization of sensory, motor and perceptive processing areas [l]. Subsequently many studies have addressed the complex networking and communication pathways between such centers, that make up the functional brain. In the past 20 years, these studies have been revolutionized with the advent of non-invasive imaging techniques which can be made sensitive to functional activity. Positron emission tomography (PET), single photon emission computed tomography (SPECT) and \"functional\" MRI (fMRI) may all provide images related to regional cerebral blood flow, shown to increase in appropriate cortical areas in response to peripheral activation","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122161793","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
Security estimates for 512-bit RSA 512位RSA的安全性估计
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485416
M. Robshaw
{"title":"Security estimates for 512-bit RSA","authors":"M. Robshaw","doi":"10.1109/WESCON.1995.485416","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485416","url":null,"abstract":"In this note we address the short-term security o ered by the use of a 512-bit RSA modulus. Following recent tremendous improvements to the practicality of the generalized number eld sieve, it must be expected that by the end of next year, a 512-bit RSA number will have been factored. However, for those elded systems which use 512-bit RSA, what are the implications? Some systems may well continue using 512-bit RSA long after one particular 512-bit RSA number has been factored. In this note, we present data which might provide answers to questions about the continuing use of a 512-bit RSA modulus. Copyright c 1995 RSA Laboratories, a division of RSA Data Security, Inc. RSA Data Security Inc. part number 003-903059-100-000-000","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116730722","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: 14
MRI-mapping the human brain electronically 核磁共振成像对人脑进行电子测绘
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485478
M. Moseley
{"title":"MRI-mapping the human brain electronically","authors":"M. Moseley","doi":"10.1109/WESCON.1995.485478","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485478","url":null,"abstract":"Introduction Magnetic resonance imaging (MRI) has been established for over a decade as a superior research and clinical modality for anatomical imaging. Noteworthy for exceptionally good sub-millimeter spatial and sub-second temporal resolution, MRI is now demonstrating the potential of tracing the links between tissue function, metabolism, blood flow and hemodynamics in both normal and disease states. Functional magnetic resonance imaging (fMRI) can utilize conventional MRI technology and equipment to image the intrinsic hemodynamic and metabolic changes that may occur in human cognitive functions such as vision, motor skills, language, memory and indeed in all mental processes. These techniques have also revolutionized detection of disease states such as stroke. MRI can within minutes acquire functional images non-invasively from an individual in any plane or volume at comparatively high-resolutions and then overlay observed functional centers of activation onto the underlying cerebral anatomy, imaged with the same MRI scanner. FMRl is rapidly evolving beyond the localization of visual, motor, and somatosensory responses to use in resective surgery of tumors, localization of \"handedness\", and elucidation of brain function and metabolism altered by pathologies such as stroke. Given the large number of clinical MRI scanners operating worldwide, fMRl will give rise to routine clinical assessment of brain and organ function, in addition to the anatomical imaging roles of present-day MRI.","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129259186","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
Power on the move: NiCd and NiMH small sealed rechargeable batteries 移动电源:NiCd和NiMH小型密封可充电电池
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485437
V. Puglisi
{"title":"Power on the move: NiCd and NiMH small sealed rechargeable batteries","authors":"V. Puglisi","doi":"10.1109/WESCON.1995.485437","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485437","url":null,"abstract":"life on the go. Both at home and on the job, we expect to have a full range of electrical and electronic devices available no matter where we are. Meeting this demand for mobility has spurred growth in small rechargeable batteries. Although mobile computing and portable communications applications for batteries are most prominent, other battery-powered devices such as power tools, consumer appliances, and toys are all experiencing significant growth in volume.","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126223703","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
Integrating physical and virtual reality in biomedical instrumentation design 生物医学仪器设计中物理与虚拟现实的结合
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485481
D. Clark, R. Cockrum, E. Ibrahim
{"title":"Integrating physical and virtual reality in biomedical instrumentation design","authors":"D. Clark, R. Cockrum, E. Ibrahim","doi":"10.1109/WESCON.1995.485481","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485481","url":null,"abstract":"The Biomedical Instrumentation program at Cal Poly Pomona utilizes our new Instrumentation and Controls Laboratory where computers, virtual-reality advanced software are combined with hardware in an integrated environment. This environment allows tailoring the laboratory experience to the specific needs of the program, and enhances the effectiveness of course delivery. The usual format of one student one experiment has changed to small teams working on miniprojects intended to analyze, design, build, and test a complete biomedical instrumentation and control system. This paper describes work performed in this laboratory by undergraduate and graduate-students durihg the past two years.","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134240170","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
Design of a computerized low temperature EBIC system 微机低温EBIC系统的设计
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485497
R. Spetz
{"title":"Design of a computerized low temperature EBIC system","authors":"R. Spetz","doi":"10.1109/WESCON.1995.485497","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485497","url":null,"abstract":"","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133647182","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
The absolute need for physical verification and analysis of submicron circuits 绝对需要对亚微米电路进行物理验证和分析
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485261
R. Rohrer
{"title":"The absolute need for physical verification and analysis of submicron circuits","authors":"R. Rohrer","doi":"10.1109/WESCON.1995.485261","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485261","url":null,"abstract":"The ever increasing signal speeds, finer feature sizes, greater chip sizes, lower power supply voltages, and increasing number of wiring levels dictated from now through the y e a r 2010 by the Semiconductor Industry Association (SIA) Integrated Circuit (IC) Technology Roadmap lead to ever greater interconnect signal integrity problems as time evolves. To address this issue there must be more efficient and more accurate Electronic Design Automation (EDA) tools for layout parameter extraction and timing delay and crosstalk and power simulation and analysis.","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124221529","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
Overcoming interference in the spread spectrum ISM bands 克服扩频ISM波段的干扰
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485429
D. Gaston
{"title":"Overcoming interference in the spread spectrum ISM bands","authors":"D. Gaston","doi":"10.1109/WESCON.1995.485429","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485429","url":null,"abstract":"","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116896203","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
Implementing DSP functions in FPGAs 在fpga中实现DSP功能
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485286
L. Ferguson, J. Rosenberg
{"title":"Implementing DSP functions in FPGAs","authors":"L. Ferguson, J. Rosenberg","doi":"10.1109/WESCON.1995.485286","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485286","url":null,"abstract":"Introduction The use of SRAM-based FPGAs in digital signal processing applications is increasing. Due partly to attractive pricing as FPGAs migrate into mainstream production use, but mainly because SRAMbased FPGAs provide a flexibility that is unavailable in either DSPs or ASICs. In many signal processing applications, the ability to change parameters rapidly in response to analysis or other time-varying events is of high value. This paper describes the bitserial arithmetic used for compact and efficient implemention of realtime DSP applications and details the implementation of an 8-tap FIR filter.","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"os8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128324153","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
GTL: a low-swing solution for high-speed digital logic GTL:高速数字逻辑的低摆幅解决方案
Proceedings of WESCON'95 Pub Date : 1995-11-07 DOI: 10.1109/WESCON.1995.485256
R. Ammar, C. Ajouri
{"title":"GTL: a low-swing solution for high-speed digital logic","authors":"R. Ammar, C. Ajouri","doi":"10.1109/WESCON.1995.485256","DOIUrl":"https://doi.org/10.1109/WESCON.1995.485256","url":null,"abstract":"INTRODUCTION This application note will examine the need for a low-swing interface in high-speed digital systems and how well this need is addressed with two interface standards: Backplane Transceiver Logic (BTL) and Gunning Transceiver Logic (GTL). Both interface standards attempt to improve the performance of high speed digital systems by reducing the difference between the logic high voltage level and the logic low voltage level. A comparison of various performance criteria, such as power consumption, noise immunity, capacitive loading, speed and packaging, will reveal that GTL provides a compelling solution in both point-to-point and backplane environments. Finally, guidelines for system designs using TI’S GTL products will be addressed as well, including generating the needed voltage supplies and proper termination techniques. The GTLl6612 and the FB1650 from Texas Instruments were used to study the various performance levels. A backplane-like design has been established to perform the lab","PeriodicalId":177121,"journal":{"name":"Proceedings of WESCON'95","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128347249","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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