High-altitude tethered balloons have potential applications in communications, surveillance, meteorological observations and climate engineering.To maintain balloon buoyancy, power fuel cells and perturb atmospheric conditions, fluids could be pumped from ground level to altitude using the tether as a hose.This paper examines the pumping requiremen
The paper discusses the programme of space exploration to be undertaken by the Space Shuttle Transportation System which is Coffee currently being developed by NASA.The basic parameters of Space Shuttle are identified and the major subsystems contributing to the shuttle are reviewed.The instrumentation-needs, and the constraints applying to it, are
Hamelin Pool, Shark Bay, Western Australia, is home to the largest and most diverse assemblage of living marine Fermented Veg stromatolites, with shapes and sizes comparable to ancient structures.A recent field-intensive program revealed seasonally ephemeral occurrences of modern dendrolitic microbial mats forming in intertidal, low energy settings
With years of vegetation restoration and check dam construction on the Loess Plateau, the sediment load of the middle reaches of the Yellow Sleeper Sofa River have decreased sharply; however, the effects of check dam on this decrease of sediment load with such extensive vegetation restoration remains unclear.In order to further clarify the effects