1. |
A RECORDING SYSTEM DESIGNED FOR THE INVESTIGATION OF THE ELECTRICAL RELATIONS IN THE BRAINS OF SMALL ANIMALS |
|
Canadian Journal of Research,
Volume 18a,
Issue 4,
1940,
Page 65-73
G. A. Woonton,
Preview
|
PDF (712KB)
|
|
摘要:
A two channel recording system, designed for the investigation of brain potential variations in several parts of the brain simultaneously, is described in detail. The oscillographs are of the cathode-ray type; each is driven by a voltage amplifier employing standard radio tubes. Complete shielding of the amplifier components and the use of symmetrical circuits have been found sufficient to eliminate electrical interference.The system is free from phase and frequency distortion between 10 and 800 cycles per sec. and is not seriously affected by either form of distortion between 5 and 1500 cycles per sec. The author believes that this covers the important frequency range for this type of investigation.
ISSN:1923-4287
DOI:10.1139/cjr40a-004
出版商:NRC Research Press
年代:1940
数据来源: NRC
|
2. |
TAIL BANDS OF THE DESLANDRES-D'AZAMBUJA SYSTEM OF THE C2MOLECULE |
|
Canadian Journal of Research,
Volume 18a,
Issue 4,
1940,
Page 74-82
G. Herzberg,
R. B. Sutton,
Preview
|
PDF (419KB)
|
|
摘要:
A number of new bands of the C2molecule are analysed and found to represent tail bands of the Deslandres-d'Azambuja system. In consequence of the extension of this system thus obtained it was possible to improve considerably on the values of the rotational and vibrational constants of the upper and lower states1IIgand1IIurespectively. The vibrational quanta of the upper state are found to decrease rather rapidly, and a short extrapolation leads to a dissociation limit at 35,900 cm.−1above the lower state1IIu. From this and a recently suggestedD0(C2) value, the energy difference between the1IIustate and the3IIuground state is determined to be 13,700 cm.−1 = 1.7 e.v.
ISSN:1923-4287
DOI:10.1139/cjr40a-005
出版商:NRC Research Press
年代:1940
数据来源: NRC
|