drowsiness

n.

睡意；嗜睡；

1. Still more directors shed post-lunch drowsiness.
   另外一些董事也摆脱了午餐后的昏沉睡意。
2. I have to spend a long time to clear my drowsiness.
   我早晨要花好长时间才能消除睡意。

The EEG of drowsiness in normal adults.
Alertness and drowsiness detection and tracking system
Evaluation of driver drowsiness by trained raters.
EEG-based drowsiness estimation for safety driving using independent component analysis
EEG-based drowsiness estimation for safety driving using independent component analysis
Some periodic phenomena arising during drowsiness and sleep in man.
Electroencephalographic study of drowsiness in simulated driving with sleep deprivation
Experimental evaluation of eye-blink parameters as a drowsiness measure
Automatic recognition of alertness and drowsiness from EEG by an artificial neural network.
Jung, T.-P.: Tonic, phasic, and transient EEG correlates of auditory awareness in drowsiness. Cognitive Brain Research 4(1), 15-25