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	Sparsity: The beauty of less is more
Improving image quality using the mathematical concepts behind sparsity was the topic in the talk by Professor Raymond Chan Hon-fu of the Department of Mathematics for the President’s Lecture Series on 16 April.
Tackling air pollution with new approaches
New methods for reducing air pollution and generating solar fuels developed by scientists at CityU offer practical solutions to the energy shortage, environmental issues, and related public health risks.

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