id	keyword
american_scientific_journal-8290	equation
american_scientific_journal-8290	method
american_scientific_journal-8290	modal
american_scientific_journal-8290	finite
american_scientific_journal-8290	element
american_scientific_journal-8290	time
american_scientific_journal-8290	solution
american_scientific_journal-8290	water
american_scientific_journal-8290	superposition
american_scientific_journal-8290	system