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Electrical Engineering

Issue 6 • Date June 1958

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Displaying Results 1 - 25 of 59
  • [Front cover]

    Page(s): c1
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  • Contents

    Page(s): c2
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  • Contents

    Page(s): 1A
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  • [Advertisement]

    Page(s): 2A
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  • Hightlights

    Page(s): 3A
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  • [Advertisement]

    Page(s): 4A - 16A
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  • Electrical engineering education and research in the USSR

    Page(s): 479 - 484
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    In this second and concluding article, the authors survey the research facilities and note the extreme importance the USSR places on electrical engineering research and scientific education of the populace as a whole. View full abstract»

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  • New printing demand meter

    Page(s): 485
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    THE NEW PRINTING DEMAND METER illustrated in Fig. 1 was designed to provide the needed long life meter which could more accurately measure and permanently record electrical demand information. Accuracy compatible to that of the watt-hour meter, which acts as the primary sensing device and impulse generator for the printing demand meter, is a design feature of the new printing demand meter. View full abstract»

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  • A general purpose selective signaling and control system

    Page(s): 486 - 491
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    A description is presented of a selective control system that is economically attractive and flexible enough to permit centralized, fail-safe control and supervision of certain facilities of right-of-way companies. View full abstract»

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  • Your next step registration

    Page(s): 491 - 492
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    Engineering, along with medicine and law, is a profession entrusted primarily with responsibilities incident to activities dealing with the protection of life, health, rights, and property. Registration of all eligible engineers as Professional Engineers is important not only to the individual engineer, but also to the prestige of the profession. View full abstract»

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  • Thermal analysis of transformer load cycles

    Page(s): 493
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    MANY TRANSFORMERS are called upon to supply varying loads in normal service. In some cases these loads are cyclic in nature. After one or more cycles the thermal response of the oil and windings will also follow a repetitive cycle. View full abstract»

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  • Presently available tools for information retrieval

    Page(s): 494 - 498
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    The nature and quality of the information and needs of the researcher are important factors in the efficient use of retrieval tools. Their potentialities and limitations in the art of information searching are reviewed. View full abstract»

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  • A-C group drives for modern textile machines

    Page(s): 498 - 500
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    Electrical drive equipment has played a large role in modern textile machinery. The advantages of a-c group drives over d-c drives are presented with several examples given. View full abstract»

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  • Valve point loading of turbines

    Page(s): 501
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    A TURBINE loaded at a valve point, that is just before the next valve opens, is working at maximum efficiency at that loading. A turbine operating off a valve point is operating less efficiently because of the throttling of the steam passing through the throttled control valve. View full abstract»

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  • A new microwave antenna system

    Page(s): 502 - 506
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    Rapid expansion of radio relay facilities requires the development of new radio relay systems in the higher frequency bands assigned by the FCC for common-carrier use. To help meet this need, a horn-reflector antenna was developed. Its application, transmission characteristics, and general design requirements are set forth. View full abstract»

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  • Measurements of steep-front impulse waves

    Page(s): 507
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    THE MEASUREMENT of steep-front impulse waves presents problems seldom encountered in ordinary 1 1/2 × 40 microsecond impulse wave testing. The problem consists of obtaining linearly rising steep-front voltage oscillograms which faithfully reproduced, to a known scale, the voltage wave as seen by the test specimen. Stray or residual divider parameters, as well as the methods used in grounding, shielding, supplying power, and synchronizing the oscilloscope, may introduce spurious responses into the voltage oscillograms. View full abstract»

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  • A reliability handbook for design engineers

    Page(s): 508 - 512
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    This article discusses a reliability handbook which has been specially prepared to aid guided missile electronics design engineers. The major section of the handbook explains methods for designing reliability into equipment by the adherence to certain “ground rules.” Emphasis is placed on the use of statistical techniques. View full abstract»

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  • The accurate determination of capacitance

    Page(s): 513
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    THE PRINCIPAL OBJECTIVE of the work described in this paper is as follows: to develop a new method for accurately determining the capacitance associated with two-dimensional composite regions. The term capacitance refers to the ordinary electric capacitance associated with two charged conductors. However, the method is also directly applicable to the determination of the permeance of magnetic fields, the shape factor of thermal fields and to other analogous situations. “Accurately determine” is taken to mean determination of the capacitance with errors in the order of one part in one thousand. Although such accuracy has been claimed for certain electrolytic tank analog methods, it is usually possible only after careful attention is given to each source of error. Such errors can arise in both the construction and the measurements associated with the analog solution. In the present method, electrically conducting paper models, much easier to construct, are used and only ordinary care is required in the measurement techniques. The usual errors encountered in the use of such paper models, amounting to several per cent, are avoided by utilizing analytical methods to obtain a first approximation amounting to perhaps 90% of the final result, and using the paper analogs to determine the other 10%. Thus, the error in the final result will be in the order of a few per cents, of say 10%, or in the order of a few tenths of 1%. View full abstract»

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  • Class III-V compound rectifiers

    Page(s): 514 - 516
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    Although it is theoretically possible to make rectifiers out of nine IIIB-VA compounds, the three compounds, InP, GaAs, and AISb are the most promising. These three compounds offer fabrication difficulties but their challenge has already been met with practical techniques. View full abstract»

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  • An electroluminescent digital indicator

    Page(s): 517 - 518
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    IN RECENT YEARS, there has been a strong trend toward the presentation of information to the human observer by means of digital rather than analog instrumentation. The significance of this trend is evidenced by the availability of a growing selection of alphanumeric display devices such as digital voltmeters and counters. View full abstract»

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  • Institute activities: Buffalo welcomes 1958 AIEE summer general meeting

    Page(s): 519 - 521
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  • AIEE future meetings

    Page(s): 519 - 522
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  • Southwest district meeting held March 31-April 2 in Tulsa

    Page(s): 523 - 524
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  • All-congress banquet highlights 1958 Nuclear congress in Chicago

    Page(s): 524 - 526
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    “INDUSTRIALIZING THE ATOM” was the theme of the 1958 Nuclear Congress, held March 17–21 in Chicago, Ill. The Congress, sponsored by 31 leading engineering, scientific, and management groups and co-ordinated by the Engineers Joint Council, consisted of the 4th Nuclear Engineering and Science Conference, the Atomic Energy Management Conference, the 6th Hot Laboratories and Equipment Conference, and the Atomic Industrial Forum Atomfair View full abstract»

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  • Translations of ussr scientific and engineering journals available

    Page(s): 526 - 527
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Aims & Scope

This Periodical ceased publication in 1963. The current retitled publication is IEEE Spectrum.

Full Aims & Scope