Space Versus Time Separation for Wireless Virtualization on an Indoor Grid

Author(s):  
R. Mahindra ◽  
G. D. Bhanage ◽  
G. Hadjichristofi ◽  
I. Seskar ◽  
D. Raychaudhuri ◽  
...  
1987 ◽  
Vol 52 (3) ◽  
pp. 294-299 ◽  
Author(s):  
Michael A. Primus

Variable success in audiometric assessment of young children with operant conditioning indicates the need for systematic examination of commonly employed techniques. The current study investigated response and reinforcement features of two operant discrimination paradigms with normal I7-month-old children. Findings indicated more responses prior to the onset of habituation when the response task was based on complex central processing skills (localization and coordination of auditory/visual space) versus simple detection. Use of animation in toy reinforcers resulted in more than a twofold increase in the number of subject responses. Results showed no significant difference in response conditioning rate or consistency for the response tasks and forms of reinforcement examined.


2010 ◽  
Author(s):  
Sean Gallagher ◽  
Jonisha Pollard ◽  
William L. Porter
Keyword(s):  

The wave form of all atmospherics received at night from sources within 2000 km. can be accurately described as a ground pulse followed by a series of sky pulses produced by successive reflexions between the ionosphere and the earth, thirty such reflexions being frequently recorded. The time separation between the peaks of these pulses is determined by the distance travelled and the height of the layer. The primary pulse emitted by the source is usually a single complete oscillation of period ranging from 50 to 400//sec. A t distances greater than 500 km. the ground pulse and the first sky pulse merge owing to the shortness of the time interval between them . Differences of amplitude, form and phase between pulses can arise from differences in angle of emission from the parent lightning channel. The height of the reflecting layer can be determined within ± 1 km. It ranged from 85-5 to 90-5 km. during two winter months, with a mean of 88-0 km. The distances of the sources as found by analysis of the pulse series were corroborated by independent location with cathode-ray direction-finders. The reflexion coefficient of the layer for the pulses of longer period exceeded 0-80. The velocity of the ground pulse where it can be tested is within 0.7 % of that of light.


Author(s):  
Heming Wen ◽  
Prabhat Kumar Tiwary ◽  
Tho Le-Ngoc

1954 ◽  
Vol 32 (5) ◽  
pp. 356-358
Author(s):  
H. J. Moody ◽  
G. J. B. Crawford

An instrument is described which produces two positive voltage spikes, whose time separation is automatically and systematically increased for each initiating trigger.


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