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IEEE Potentials

Issue 2 • Date April-May 2003

 This issue contains several parts.Go to:  Part Supplement 

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Displaying Results 1 - 11 of 11
  • Development of the digital computer - II

    Publication Year: 2003, Page(s):41 - 44
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (778 KB) | HTML iconHTML

    The first truly electronic computers, ones that used vacuum tubes rather than electromechanical relays for switching, originated in connection with World War II (WWII). Computation became a major thrust in that war for two complex problems that could only benefit from faster computational machinery. One was the problem among the various combatants to be able to read the other side's radio messages... View full abstract»

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  • Using PSPICE for electrical heat analysis

    Publication Year: 2003, Page(s):35 - 38
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (329 KB) | HTML iconHTML

    There are many tools available for thermal analysis and many available for electrical analysis. However, for those that require both (e.g. heater control systems, device temperature models, TEC modeling), the authors find that Orcad PSPICE, a registered trademark of ORCAD Corporation, is among the best. In fact, PSPICE is a fast and accurate tool for the thermal modeling of systems with a relative... View full abstract»

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  • Living antennas on communication satellites

    Publication Year: 2003, Page(s):13 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (881 KB) | HTML iconHTML

    Crises change the global pattern of communication. The communications problems occur because the satellites are optimized to cover specific geographic areas, and these areas cannot be altered once the satellites are in Earth orbit. An effective solution to the problem is to equip communication satellites with "living" antennas that can adjust their radiation coverage areas according to the new dem... View full abstract»

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  • An interesting phenomenon [lighting technology]

    Publication Year: 2003, Page(s):39 - 40
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB) | HTML iconHTML

    Before the tungsten filament bulb and the fluorescent tube disappear from the market, a very interesting phenomenon regarding their operation in a series is examined here. Reported by some electricians, the phenomenon is significant since it provides insight to the initiation of arc. Also, its maintenance is in a fluorescent tube with the help of a tungsten filament bulb instead of a choke. View full abstract»

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  • Cell searching in WCDMA

    Publication Year: 2003, Page(s):16 - 19
    Cited by:  Papers (1)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (315 KB) | HTML iconHTML

    In Europe, the digital second generation (2G) systems, IS-136 and the Global System for Mobile communications (GSM), developed were based on time division multiple access (TDMA) and in the US, the IS-95 system developed was based on code division multiple access (CDMA). The 2G technologies developed both in Europe and US suffered from a number of limitations that included: low bit rate for 2G syst... View full abstract»

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  • Survival skills in downsizing company

    Publication Year: 2003, Page(s):4 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1694 KB) | HTML iconHTML

    Unfortunately, many of us will be in companies that are downsizing at some point in our careers. Often such reductions in staff at companies create a work environment that is less than optimal. However, the guidelines discussed by the author are intended to help you in maintaining gainful employment during the process. These guidelines deal with downsizing situations where the company still surviv... View full abstract»

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  • Sensor networks: an overview

    Publication Year: 2003, Page(s):20 - 23
    Cited by:  Papers (267)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (211 KB) | HTML iconHTML

    Advances in hardware and wireless network technologies have created low-cost, low-power, multifunctional miniature sensor devices. These devices make up hundreds or thousands of ad hoc tiny sensor nodes spread across a geographical area. These sensor nodes collaborate among themselves to establish a sensing network. A sensor network can provide access to information anytime, anywhere by collecting... View full abstract»

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  • Resource management in LEO satellite networks

    Publication Year: 2003, Page(s):6 - 12
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1200 KB) | HTML iconHTML

    To provide truly global coverage needed by increased Personal Communication Services (PCS), a new generation of mobile satellite networks has been proposed. These low Earth orbit (LEO) mobile satellite networks handle multimedia traffic and can be used for non-real-time as well as real-time service to remote areas. Due to the many handoffs, resource management and connection admission control are ... View full abstract»

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  • Wavelets: getting perspective

    Publication Year: 2003, Page(s):24 - 27
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB) | HTML iconHTML

    When a person becomes so involved in details that they begin to lose sight of the big picture, it is said "they can't see the forest for the trees!" The wavelet transform is a relatively new signal processing tool that allows us to efficiently analyze the small details and the big picture. Wavelets have been shown to be very useful for signal compression, denoising and pattern recognition. This sh... View full abstract»

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  • Fractals and wavelets

    Publication Year: 2003, Page(s):28 - 31
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (746 KB) | HTML iconHTML

    Network traffic is the outcome of many different sources, which in fact is reminiscent of chaos, that is fractals. Scaling behavior is intrinsically connected with fractals and chaos theory. It is well known that the scaling behavior of teletraffic data affects substantially the overall performance of computer networks. In fact, this behavior is taken into account during analysis, design and deplo... View full abstract»

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  • Engineering help while getting a degree

    Publication Year: 2003, Page(s):32 - 34
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1567 KB) | HTML iconHTML

    This paper describes the US Peace Corps Master's International (MI) Program at Michigan Tech in Civil and Environmental Engineering. It is the only program of its kind in the United States and over two dozen students are currently enrolled in this program. View full abstract»

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IEEE Potentials is the magazine dedicated to undergraduate and graduate students and young professionals.

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Meet Our Editors

Editor-in-Chief
Sachin Seth
Texas Instruments
sachin3006@gmail.com