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Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics

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Displaying Results 1 - 23 of 23
• Electromechanical impedance: Analogs and duality

Publication Year: 1959, Page(s):80 - 83
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It is felt that 4-terminal network theory is potentially of great value in the analysis of problems in the non-electrical realm and problems which are only partially electrical. In attempting to apply 2-port theory however,1,2 some perplexing difficulties arise. These appear to the author basically to be due to somewhat loose habits of thought in defining impedance and admittance on the basis of p... View full abstract»

• Measurements of narrow-band noise on telephone facilities in connection with analog data

Publication Year: 1959, Page(s):83 - 86
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The recent growth of automation and the handling of data by machines have resulted in a growing need for data communication between terminals separated by many miles. Both the trend toward decentralization of business and the tendency toward centralized data-processing centers have contributed to this need. One solution to the problem of providing effective data communication is to use the telepho... View full abstract»

• A comparison of mouth-to-mouth and manual artificial respiration techniques

Publication Year: 1959, Page(s):86 - 91
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Chemical, industrial, and mechanical progress have increased the incidence of cases requiring artificial respiration in industrial, military, and civilian spheres. The danger from electricity is a potent factor in all of these situations. View full abstract»

• Thermal life of enameled magnet wire

Publication Year: 1959, Page(s):91 - 102
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In the summer of 1953, a Working Group on Thermal Stability of Insulating Materials was organized under the sponsorship of the AIEE Subcommittee on Electrical Insulation (formerly the Dielectrics Committee) of the Basic Sciences Committee. In January 1954 a task force on the Evaluation of the Thermal Stability of Enameled Magnet Wire was appointed and it was given the responsibility of developing ... View full abstract»

• A silicon-controlled rectifier: I -Characteristics and ratings

Publication Year: 1959, Page(s):102 - 106
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The name silicon-controlled rectifier has been given to a new 3-terminal semiconductor device which has electrical characteristics similar to a thyratron. This device has been developed by the Semiconductor Products Department of the General Electric Company and has been given the developmental designation ZJ-39A. Its characteristics are made possible through the use of a p-n-p-n junction configur... View full abstract»

• CCITT recommendations for multichannel radio relays and white noise

Publication Year: 1959, Page(s):107 - 117
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The recommendations of the International Telegraph Consultative Committee (CCIT) and International Radio Consultative Committee (CCIR) now extend into virtually every phase of communications, and are becoming of increasing significance to the radio-relay engineer. Of particular interest is the hypothetical reference circuit proposed as a guide for system design. It is pointed out that recommendati... View full abstract»

• Marginal utility and a criterion of performance for communication and radar systems

Publication Year: 1959, Page(s):117 - 119
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Since communication or radar systems, like all systems involving human activity, are subject to the laws of profit and loss, their performance may be evaluated on a scale of economic utility values. A utility evaluation may be conducted with the aid of D. Bernoulli's Law of Diminishing Marginal Utility.1 View full abstract»

• The 83B1 teletypewriter selective-calling system

Publication Year: 1959, Page(s):119 - 124
Cited by:  Papers (1)
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During the last decade and a half in particular, the use of teletypewriters on leased lines has grown very rapidly. The Bell System now has more than 50,-00 such teletypewriter stations in service. In order to obtain the most communication for the least over-all cost, it is common practice, where the traffic load on the line will permit, to operate several stations on the same line. This results i... View full abstract»

• Shunt-coupled magnetic-amplifier circuits

Publication Year: 1959, Page(s):124 - 131
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A recent study of magnetic-amplifier theory based on block-diagram techniques1 suggested to this author that one potentially useful basic technique for extracting the output information from the simple self-saturating magnetic amplifier had been seriously neglected in the past. Although it is a well-recognized fact that the output information in a self-saturating magnetic amplifier is contained in... View full abstract»

• Coolant instrumentation for pressurized water reactor power plants

Publication Year: 1959, Page(s):131 - 136
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Nuclear power has become a reality. The theory and classical experiments of half a century have been assembled and within the last decade have provided mankind with a new source of power. The problem of handling and controlling this new process is a monument in itself to technical ingenuity of the American engineer. At this stage of the art one cannot judge the nuclear power plant as a simple syst... View full abstract»

• On the feedback in magnetic amplifiers: II - Combined magnetic and electric feedbacks

Publication Year: 1959, Page(s):136 - 141
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A previous paper1 has presented a steady-state and transient analysis of various types of feedback, magnetic or electric, applied to a self-saturating bridge or center-tap amplifier. This paper is a brief extension of that treatment to certain combinations of a positive magnetic feedback and a negative electric feedback as used by Geyger in "voltage-balance" and "current-balance" potentiometer-typ... View full abstract»

• A nonsynchronous system for mobile record communications

Publication Year: 1959, Page(s):141 - 147
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One of the most significant advances in the record communications industry occurred during World War II. This was not so much a technological advance, although this certainly occurred, but a change in operational requirements. The sheer bulk of communications which is required to control adequately and to support a highly mobile combat force plus the difficult communications problems which are pos... View full abstract»

• Industry schools its engineers

Publication Year: 1959, Page(s):147 - 152
Cited by:  Papers (1)
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Why is industry starting and expanding programs to educate its young engineers beyond the level where formal education left off? Why is it reviewing the education of its older engineers and giving them further training? Are not the great universities offering their students the proper curriculums? View full abstract»

• Application of finite integral transforms to analog simulations

Publication Year: 1959, Page(s):152 - 155
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Integral transformations are defined by the expression $(p) = int^{b}_{a} {f(x)k(p, x)dx} eqno {hbox{(1)}}$ where K(p, x) is termed the transformation kernel. Theoretically a wide variety of functions could serve as kernels, and an infinite number of transformations could be generated. However, only a limited number of kernels possess those properties which make their transforms useful for the sol... View full abstract»

• Computational and experimental techniques in nuclear reactor design

Publication Year: 1959, Page(s):155 - 163
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The purpose of this paper is to discuss a nuclear design technique for a nuclear power reactor. It is felt that this area of reactor design is not as well-known in the engineering profession as, for example, power plant systems or control systems. View full abstract»

• A-C shocks of varying parameters affecting the heart

Publication Year: 1959, Page(s):163 - 169
Cited by:  Papers (14)
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It is well known that both the human and the dog's heart may be thrown into ventricular fibrillation by 60-cycle a-c shocks, resulting in the cessation of circulation followed by death. There are, however, little data available as to the magnitude of the current of various durations that will result in fibrillation, nor is there much information as to how the induction of fibrillation is influence... View full abstract»

• Eddy-current losses in solid and laminated iron

Publication Year: 1959, Page(s):169 - 181
Cited by:  Papers (91)
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In this paper formulas are developed, on the basis of simple physical conceptions, for the calculation of eddy currents in solid and laminated iron, which, as the experiments presented show, enable the losses caused by eddy currents to be predicted with surprising accuracy. A simple formula for the calculation of the power factor (pf) that the magnetic circuit reflects into the magnetizing winding... View full abstract»

• A method for calibration of precision voltage dividers

Publication Year: 1959, Page(s):182 - 185
Cited by:  Papers (3)
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One phase of electrical measurements which is rapidly becoming more important and requiring higher degrees of accuracy is the measurement of voltage ratio. Conventional 4-arm bridge techniques are often used where two impedances are connected in series, energized from either or both of the voltages whose ratio is being measured, and adjusted so that the voltages across them exactly match the two b... View full abstract»

• Evaluation of solderless wrapped connections for central office use

Publication Year: 1959, Page(s):185 - 194
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Since 1952, when the solderless wrapped connection first was described publicly,1 its use in telephone central offices has grown steadily. Several hundred million solderless connections are being wrapped annually in the Bell System today, and the growth is continuing. View full abstract»

• Telex in new york

Publication Year: 1959, Page(s):194 - 201
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An automatic dial teleprinter exchange service was placed in operation in May 1958, through which subscribers in New York City may obtain direct teleprinter connections, in a matter of seconds, to over 1,200 subscribers throughout Canada. View full abstract»

• Life characteristics of carbon-film resistors after 12,000 hours of operation

Publication Year: 1959, Page(s):201 - 207
Cited by:  Papers (1)
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The development of carbon-film resistors since World War II has provided the electronics industry with a reasonably priced semiprecision resistor.1,2 The film resistors are smaller, lighter, cheaper, and have better frequency characteristics than precision wire-wound resistors. They are not as accurate as precision wire-wound resistors, and the temperature coefficient is still undergoing improveme... View full abstract»

• Rapid determination of corona loss from voltage-charge diagrams

Publication Year: 1959, Page(s):207 - 209
Cited by:  Papers (4)
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The measurement of a-c corona loss in laboratory test setups is frequently necessary when the magnitude of the loss is so small that wattmeter instruments cannot be used. An accurate, rapid means using only one measurement from a voltage-charge diagram is presented in this paper. View full abstract»

• A talk-back system for educational television

Publication Year: 1959, Page(s):209 - 216
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Today the magic of television takes a teacher instantly to as many classrooms as desired. She appears before vast numbers of pupils not only with her voice, but with her material and her gestures, instructional ability, and personality intact. The principal missing element is the ability to know her pupils and to gage her pace by their reactions. Unseen and unheard, they lack presence. View full abstract»

Aims & Scope

This Transactions ceased publication in 1963. The current retitled publication is  IEEE Transactions on Communications.

Full Aims & Scope