Titlebook: Birth of the Universe and Fundamental Physics; Proceedings of the I Franco Occhionero Conference proceedings 1995 Springer-Verlag Berlin He

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Thermal quantum corrections to (Anti) de Sitter geometry,ress tensor are exactly solved. In this theory quantum field fluctuations are concentrated near two spheres of the de Sitter radius, propagating as light wave fronts. The analysis, performed for flat expanding universe, shows exponential damping of the back-reaction effects far from these spherical

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Package-Handling Conveyors,Package-handling conveyors are either gravity type, roller (nonpowered); belt drive, roller; chain driven, roller; belt; or slat. Belt conveyors in general are covered in section 2. Drives are covered in section 9.