| 1. |
The practical training of professional electrical engineers |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 437-446
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DOI:10.1049/ji-1.1947.0128
出版商:IEE
年代:1947
数据来源: IET
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| 2. |
The design and construction of a new electron microscope |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 447-462
M.E.Haine,
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摘要:
An introduction to the electron microscope is given. Starting from the limitations to the resolving power of the optical microscope, the discovery of de Broglie concerning the wave aspect of moving particles and the derivation of the electron lens by Busch are described. The limiting action of the spherical aberration of the electron lens is discussed and the theoretical resolving limit set by this and diffraction effects is evaluated as 10 Ångstrom units (Å).A very brief historical outline of early work is given.The functions and requirements of the various parts of a practical instrument are discussed and a description is given of the new instrument designed by the author and his collaborators. The description includes details of the mechanical construction of the tube and its accessories, as well as general notes on the vacuum system, circuits and operation of the instrument. Finally, a few examples of results obtained on the instrument are given.
DOI:10.1049/ji-1.1947.0129
出版商:IEE
年代:1947
数据来源: IET
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| 3. |
Telecommunications in war |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 463-464
A. StanleyAngwin,
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PDF (346KB)
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DOI:10.1049/ji-1.1947.0130
出版商:IEE
年代:1947
数据来源: IET
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| 4. |
Summarizing review |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 464-464
Clifford C.Paterson,
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PDF (176KB)
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DOI:10.1049/ji-1.1947.0131
出版商:IEE
年代:1947
数据来源: IET
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| 5. |
Long-distance point-to-point communication |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 465-466
A.H.Mumford,
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PDF (387KB)
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DOI:10.1049/ji-1.1947.0132
出版商:IEE
年代:1947
数据来源: IET
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| 6. |
Low-, medium- and high-frequency communication to and from H.M. ships |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 467-468
W.P.Anderson,
E.J.Grainger,
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PDF (360KB)
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DOI:10.1049/ji-1.1947.0133
出版商:IEE
年代:1947
数据来源: IET
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| 7. |
Military radio communications |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 469-470
J.B.Hickman,
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PDF (379KB)
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DOI:10.1049/ji-1.1947.0134
出版商:IEE
年代:1947
数据来源: IET
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| 8. |
Ultra-high-frequency techniques applied to mobile and fixed communication systems |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 470-471
J.Thomson,
J.D.Denly,
I.J.Richmond,
F.Pugliese,
H.Borg,
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DOI:10.1049/ji-1.1947.0135
出版商:IEE
年代:1947
数据来源: IET
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| 9. |
Pulse communication |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 471-472
D.Cooke,
Z.Jelonek,
A.J.Oxford,
E.Fitch,
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PDF (305KB)
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DOI:10.1049/ji-1.1947.0136
出版商:IEE
年代:1947
数据来源: IET
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| 10. |
Aeronautical communications |
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Journal of the Institution of Electrical Engineers - Part I: General,
Volume 94,
Issue 82,
1947,
Page 473-474
B.G.Gates,
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PDF (329KB)
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DOI:10.1049/ji-1.1947.0137
出版商:IEE
年代:1947
数据来源: IET
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