SAE Electronic Information - Databases, Software And Future Information Technologies

1988 ◽  
Author(s):  
Amy J. Haugh
2008 ◽  
Vol 33 (4) ◽  
pp. 361-367 ◽  
Author(s):  
John E. Kralewski ◽  
Bryan E. Dowd ◽  
Titilope Cole-Adeniyi ◽  
Dave Gans ◽  
Lucy Malakar ◽  
...  

Author(s):  
А.В. Трифонов ◽  
И.В. Игнатьев ◽  
К.В. Кавокин ◽  
А.В. Кавокин ◽  
П.Ю. Шапочкин ◽  
...  

AbstractMechanisms of the suppression of the electron-hole exchange interaction in nonradiative excitons with a large in-plane wave vector in high-quality heterostructures with quantum wells are analyzed theoretically. It is shown that the dominant suppression mechanism is exciton-exciton scattering accompanied by the mutual spin flips of like carriers (either two electrons or two holes), comprising the excitons. As a result, the electron spin polarization in nonradiative excitons may be retained for a long time. The analysis of experimental data shows that this relaxation time can exceed one nanosecond. This long-term and optically controllable spin memory in an exciton reservoir may be of interest for future information technologies.


Author(s):  
Joanna Bałach-Frankiewicz

The community of Jelcz–Laskowice has been transformed from industrial society into informative society due to the rapid growth of electronic information and using communication and information technologies. This change is a very important element which ensures the quick and balanced socioeconomic development of the town.The aim of this research is to show the process of formation and functioning of the informative society in Jelcz–Laskowice. Some factors which have influenced formation and development of the informative society in the town are analyzed in this study. The author also characterizes the process of community transition from industrial to informative society. The citizens of Jelcz–Laskowice frequently use information technology not only at work, but also in private life. Having analyzed the society of Jelcz–Laskowice as an informative society, to study its formation the author used some selected rates. The research mainly focuses on the questions of accessing and using such technologies.


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