2 results about "Respiratory effect" patented technology

The invention discloses a land ecosystem carbon source sink assimilation prediction method and device based on adaptive moment estimation, equipment and a medium. The method comprises the following steps: collecting a meteorological data set; the meteorological data set is input into the optimized carbon cycle model to predict the carbon flux, the carbon cycle model comprises a photosynthesis model and a respiratory action model, the photosynthesis model is used for obtaining photosynthesis flux, and the respiratory action model is used for obtaining respiratory action flux; wherein the optimization process of the carbon cycle model comprises the following steps: carrying out data assimilation on model parameters of the carbon cycle model by adopting an adaptive moment estimation algorithm, and constraining carbon flux to obtain an initially optimized carbon cycle model; fitting photosynthesis flux and respiratory flux based on the carbon cycle model of the initial optimization model parameters, and automatically constraining flux sum with poor fitting effect according to the fitting effect to obtain a final optimized carbon cycle model.

A wrist or finger mounted wearable device and method for determining a state or activity level of the autonomic nervous system, such as the respiratory rate or activity of the vagus nerve. The wearable device having at least a pair of electrocardiograms (ECG) measurement electrode pads configured to perform hand-to-hand ECG measurements. The device or method including monitoring of the pair of ECG measurement pads at a first time period to arrive at a first reading of hand-to-hand ECG, and at a second time period to arrive at a second reading of hand-to-hand ECG. The device or method analyzing the first and second readings of ECG to arrive at various indications of the state of a user.