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A Comprehensive Study of Pre-Mixed Methane Flames on Lean Combustion
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Downdraft Gasification of Oil Palm Frond : A Practical Approach
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Exergy Analysis of a Natural Gas Fired Thermal Power Plant
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High Performance Gan Light-Emitting Diode : A Reliability Study

Bok av Zonglin Li
The reliability of InGaN/GaN light emitting diodes (LEDs) with different emission wavelengths and different geometries was studied. Device performances, like current-voltage characteristics, 1/f noise spectrum, leakage, static resistance, were measured. The devices underwent a 1000-hr constant-current stress test and their optical output degradation rate was examined. The results were explained by cross-related data.