| IMPLEMENTATION OF POYNTING VECTOR MEASUREMENTS. |
31 AUG 1966 |
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| Authors:
W. W. COWLES; N. Farhat; R. M. Showers; MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
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 | This report covers the design, construction, and field testing of an experimental device capable of measuring the magnitude of the Poynting vector associated with an electromagnetic field. With mechanical manipulation, it can determine the direction of the Poynting vector. It is based upon theory which has been described previously. Tests of the final device demonstrate that it is capable of measuring this quantity with reasonable accuracy. The major limitations on ... |
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| FRESNEL ZONE THEORY. |
MAR 1966 |
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| Authors:
W. R. Lind; MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
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| This report is concerned with 'the state of the art' of Fresnel zone thoery. Starting with Maxwell's equations expressions are obtained for fields, power density, and gain in the near field of aperture antennas. The effect of the size, shape, and aperture distribution of a 'probe' which is used to measure antenna parameters in the Fresnel region and power transfer between antennas located in each other's Fresnel region is also ... |
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| TOP MANAGEMENT REPORTING AT THE AVIATION SUPPLY OFFICE PRACTICE AND POSSIBILITIES. |
SEP 1965 |
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| Authors:
James E. McNulty ; James Thrash; MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
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| This report presents the results of field interviews with military and civilian personnel at the ASO concerning the general subject of reports to the Commanding Officer and his Executive. The document treats the subjects of reporting practices for purposes of top management control at the ASO. Discussion of management reporting is confined to systematic formal reporting to the Commanding Officer and his Executive. (Author) |
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| A HEURISTIC DERIVATION SEEKER FOR UNIFORM PREFIX LANGUAGES. |
SEP 1965 |
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| Authors:
Gerhard Chroust; MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
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| The paper describes the theoretical background and the realization of a program which tries to find the derivation of a prefix word ('the problem') for some classes of uniform prefix languages. The program can be applied to different language specifications which may contain a base alphabet, defined symbols, axioms, a substitution rule and transformation rules. The specification is similar to formalized logic, but is capable of expressing a much broader ... |
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| A SURVEY OF PICTORIAL DATA PROCESSING TECHNIQUES AND EQUIPMENTS. |
AUG 1965 |
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| Authors:
Andries VAN Dam; MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
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| The material presented serves as a state-of-the-art report on pictorial data processing techniques and equipments; however, it is not an exhaustive report nor does it cover all the areas of pictorial data processing. The report is directed primarily to the present and future needs of the engineering data generator and user who wants to communicate in real or near real-time with his environment of digital processors. The areas covered include ... |
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| DETECTION OF GENERATIVE AMBIGUITIES IN CONTEXT-FREE MECHANICAL LANGUAGES. |
1962 |
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| Authors:
Saul Gorn; MOORE SCHOOL OF ELECTRICAL ENGINEERING UNIV OF PENNSYLVANIA PHILADELPHIA
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| The author considers the problem of detecting those words in a 'context-free' mechanical language which can be derived from the defining 'productions' in essentially more than one way. The problem of finding a single algorithm accepting the generative specifications of such languages, and determining in a finite time whether or not such 'ambiguities' exist, is known to be unsolvable. The author, however, by defining the 'generative levels' with respect to ... |
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