The world today is marked by paradox. Never before has humanity possessed such extraordinary scientific knowledge, ...

During my visits to several schools in villages and nearby semi-urban areas, I encountered a troubling contradiction at the ...

Hydrogels are among the most widely studied biomaterials in modern drug delivery research. Their high hydrophilicity, ...

Final project @ Numerical Linear Algebra (数值代数) at Peking University. Consider the Stokes equations: $$-\Delta \vec{u} + \nabla p = \vec{F}, (x, y) \in (0,1 ...

The headquarters of Petroleos del Peru (Petroperu), a state company dedicated to the refining, distribution and marketing of fuels, is seen at the district of San Isidro in Lima, Peru, May 4, 2017.