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Potentials, IEEE

Issue 2 • Date April 1991

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Displaying Results 1 - 6 of 6
  • Radar's environmental role

    Publication Year: 1991 , Page(s): 13 - 16
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (486 KB)  

    Various types of radar and their applications are described. Included are Doppler weather radars, which can measure rainfall windshear, and high-altitude wind profiles; low-frequency radars, for geological probing and buried object detection; and spaceborne radars, for remote sensing. Spaceborne radar is also used to explore the surfaces of other planets.<> View full abstract»

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  • Climbing the ladder (career advancement)

    Publication Year: 1991 , Page(s): 21 - 24
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (449 KB)  

    Changes in the work environment and in the traditional rungs to success brought about by increasing global competition, which has pressured leading American companies to place more emphasis on profitability, are discussed. The different career tracks traditionally found in manufacturing companies are examined. Strategies for building skills that lead to increased respect and influence throughout the industry are described.<> View full abstract»

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  • Database management and design

    Publication Year: 1991 , Page(s): 25 - 28
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (495 KB)  

    The use of a central repository for data and a database management system that enables programs to share data more efficiently and ensures the consistency of the data across the system is discussed. Relational databases, which represent both entities and relationships using tables, are described. It is shown that by proper design of the relational tables, the redundancy and wasted space of many ad hoc databases can be eliminated. Data are retrieved from a relational database through the use of a procedural query language. The leading query language for relational databases, the Structured Query Language (SQL), is examined.<> View full abstract»

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  • Remote sensing of the ice sheets

    Publication Year: 1991 , Page(s): 29 - 32
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (600 KB)  

    The importance of understanding ice sheet dynamics in order to achieve a realistic model of climatic and oceanographic processes is discussed. The role played by radar remote sensing instruments such as radar depth sounders, synthetic aperture radar imagers, and satellite radar altimeters in the systematic monitoring of ice sheet characteristics, which is essential in the early detection of global warming trends, is examined. The principle of operation of each of these instruments and the information they provide are described.<> View full abstract»

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  • Artificial neural networks

    Publication Year: 1991 , Page(s): 33 - 36
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (447 KB)  

    A general neural network model is introduced. The authors begin with a discussion of models for both individual neurons and for networks of neurons. A common learning rule, i.e. backward error propagation, also known as backpropagation, is described briefly and applied to an example problem.<> View full abstract»

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  • Keeping down the volume (noise level calculation)

    Publication Year: 1991 , Page(s): 37 - 40
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1078 KB)  

    A computer program that considers all propagation paths that sound can take to travel from source to receivers (including reflections on barriers and ground, diffraction around barriers, transmission through barriers, etc.) is described. It is available on a PC to help the substation designer estimate the contours of noise levels resulting from a selected substation layout. The sources of the audible noise generated by substation power transformers are identified, and a qualitative overview of the physics of sound propagation is given. The method of calculation used by the program and the kind of input required are discussed.<> View full abstract»

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Aims & Scope

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

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Meet Our Editors

Editor-in-Chief
David Tian
Carnegie Mellon University
david.tian@ieee.org