Mostafa M. El-Sheekh, Abla A. Farghl, Hamdy R. Galal, Hani S. Bayoumi
The present investigation was attempted to reduce the toxic pollutants from the
different mixtures of water samples (sewage, sea and well) using the freshwater
alga, Chlorella vulgaris and the marine alga Chlorella salina. The results
revealed that both algae species were highly efficient and having a potential to
reduce pH, total dissolved solids (TDS), biological oxygen demand (BOD),
chemical ox... hiện toàn bộ
Roger Haagmans, Christian Siemes, Luca Massotti, Olivier Carraz, Pierluigi Silvestrin
AbstractThe paper addresses the preparatory studies of future ESA mission
concepts devoted to improve our understanding of the Earth’s mass change
phenomena causing temporal variations in the gravity field, at different
temporal and spatial scales, due to ice mass changes of ice sheets and glaciers,
continental water cycles, ocean masses dynamics and solid Earth deformations.
The ESA initiatives s... hiện toàn bộ