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IEEE Potentials

Issue 3 • Date Oct. 1989

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Displaying Results 1 - 8 of 8
  • The budget-conscious buyer (defence procurement)

    Publication Year: 1989, Page(s):11 - 13
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (646 KB)

    The author explains the criteria that underlie the awarding of contracts by the US government. She stresses the fact that the company that gets the contract is the company with the best value, which is not the same as the lowest bidder. The qualifications that a company must meet before the size of the bid is even considered are outlined. How the decision to develop a product is made is explained.... View full abstract»

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  • Number theory

    Publication Year: 1989, Page(s):14 - 17
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (553 KB)

    Number theory, an abstract branch of mathematics that deals with relationships between whole numbers, has provided highly useful answers to numerous real-world problems. The author briefly reviews earlier uses of number theory and then examines recent applications to music, cryptography, and error-correction codes.<> View full abstract»

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  • Molecular beam epitaxy

    Publication Year: 1989, Page(s):18 - 22
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1080 KB)

    A tutorial review of molecular beam epitaxial (MBE) growth of elemental, compound and alloy semiconductor films is presented. MBE is carried out on a heated substrate under ultra-high-vacuum (UHV) conditions (total pressure <10/sup -10/ torr) by directing one or more thermal energy beams of atoms or molecules onto the crystalline surface of a substrate where they can react. The advantages of MBE a... View full abstract»

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  • Gallium arsenide (device applications)

    Publication Year: 1989, Page(s):23 - 25
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (481 KB)

    The device potential of GaAs and the problems inhibiting its widespread use are examined. Problems encountered in growing wafers are stringent process requirements for obtaining pure material, high susceptibility to lattice defects, small size (2-3 in) of wafers that can be grown, low thermal conductivity necessitating a special heat sink, and the uselessness of native oxide, which must be avoided... View full abstract»

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  • Talking shop (CIM)

    Publication Year: 1989, Page(s):26 - 28
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (535 KB)

    The barrier to growth of computer integrated manufacturing (CIM) posed by the difficulty in transmitting information from one machine to another is addressed. The Initial Graphic Exchange Specification (IGES), which was formed in 1979 to facilitate the exchange of product definition data between different CAD/CAM systems, is discussed. The use of a neutral file to reduce the complexity of solving ... View full abstract»

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  • Safe computing

    Publication Year: 1989, Page(s):29 - 31
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (582 KB)

    So-called worms, viruses, and Trojan horses that attack computer systems are defined. The vehicle that allows these attacks to occur, namely, the open computer internetwork, is examined. The problem of providing protection against attack in an internetwork environment is discussed. The need for professional responsibility on the part of the scientific and engineering community in enforcing strong ... View full abstract»

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  • Doing real time

    Publication Year: 1989, Page(s):40 - 43
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The authors define real-time systems as those that are able to respond to specific events within a specific time. They examine the use of microprocessors in such systems. Time constraints that impact the design are discussed. They are the response time, survival time, recovery time, throughputs, and period of service request. Real-time techniques, i.e. software methods that reduce the execution ti... View full abstract»

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  • The EE student's PC toolkit. I

    Publication Year: 1989, Page(s):44 - 48
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (414 KB)

    This survey article is the first of a four-part series that reviews programs that are useful in an academic setting. Emphasis is on those that can be utilized in electrical engineering coursework. The criteria for selecting software are set forth, and the necessary components of the ideal toolkit are identified. Each of these categories-graphing/plotting, word processing, graphics/schematic drawin... 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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Editor-in-Chief
Sachin Seth
Texas Instruments
sachin3006@gmail.com