id	keyword
american_scientific_journal-2258	system
american_scientific_journal-2258	voltage
american_scientific_journal-2258	power
american_scientific_journal-2258	bus
american_scientific_journal-2258	stability
american_scientific_journal-2258	model
american_scientific_journal-2258	analysis
american_scientific_journal-2258	figure
american_scientific_journal-2258	engineering
american_scientific_journal-2258	buses
american_scientific_journal-2258	sciences
american_scientific_journal-2258	technology