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The use of disposable plasticized medical gowns – both conventional and biodegradable – has surged since the onset of the COVID-19 pandemic. Landfills now brim with them.
It was a bit like making a CT scan of a patient’s head and finding he had very little brain or making a PET scan of a dead fish and seeing hot spots of oxygen consumption. Scientists making seismic im...
A periodic add/drop system in a fiber ring network was investigated using a reconfigurable optical add/drop multiplexer (ROADM) in a re-circulating fiber loop. After seven cascaded add/drop nodes at e...
An international collaboration of researchers has produced the most detailed map to date of water content in the lower atmosphere. This is the first such map to be made with satellite data and could l...
Analysis of chromatic effects in the shift-and-add method
shift-and-add method chromatic effects
2009/7/10
Analysis of chromatic effects in the shift-and-add method。
Local materials, low cost and good science add up to technology for developing nations
irrigation system cholera bacteria
2007/5/15
May 14, 2007，"Appropriate technology" for developing nations can be as simple as a cloth sari folded four times and used to filter cholera bacteria from water. It can be as elegant as a clay pot withi...