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Obstructive sleep apnea (OSA) is a common sleep disorder that causes increasing mortality risk and affects the quality of life of approximately 6.62% of the total US population. Timely detection of sleep apnea events is vital for the treatment of OSA. In this paper, we present a novel approach based on extracting the quantifiers of nonlinear dynamic cardio-respiratory coupling from electrocardiogram...
Obstructive sleep apnea (OSA) is a common sleep disorder that causes increasing risk of mortality and affects quality of life of approximately 6.62% of the total US population. Timely detection of sleep apnea events is vital for the treatment of OSA. In this paper, we present a novel approach based on extracting the quantifiers of nonlinear dynamic cardio-respiratory coupling from electrocardiogram...
Forecasting sales and demand over 6–24 month horizon is crucial for planning the production processes of automotive and other complex product industries (e.g., electronics and heavy equipment) where typical concept-to-release times are 12–60 month long. However, nonlinear and nonstationary evolution and dependencies with diverse macroeconomic variables hinder accurate long-term prediction of the future...
Recently, there have been developments in sensor and wireless communication techniques for phonocardiology applications which have been focusing primarily in the area of Bluetooth technology. In this paper, wireless phonocardiography sensor based on Zigbee protocol is developed. The system consists of phonocardiography sensor, wireless mote and a sensor board. The test results show that the system...
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