3 results about "Optode" patented technology

An in-situ chemical imaging method and system applied to a soil drilosphere. The method comprises: S1, preparing an earthworm burrowing box and filling same with soil; S2, selecting appropriate earthworms and placing same in the soil for culturing, such that sufficient earthworm pores are generated in the soil; S3, sequentially providing a filter membrane (9), a DGT adsorption membrane (107) and a pH planar optode membrane (106) on a soil profile of a drilosphere which needs to be imaged, such that the three membranes can all be fully attached to the soil profile of the drilosphere, applying ultraviolet light under dark conditions, culturing for a period of time, and capturing a fluorescence signal emitted by the pH planar optode membrane (106), so as to obtain a pH fluorescence image; S4, performing color development on the DGT adsorption membrane (107); and S5, capturing a color-developed image of the DGT adsorption membrane (107) to obtain a DGT image, and performing picture processing on the DGT image and the pH fluorescence image to obtain spatial distribution images of available phosphorus and pH in the drilosphere. The problem of difficulty in in-situ detection of a biogeochemical cycling process driven by earthworm activities in soil is solved.

This invention discloses a method and system for calculating brain region blood flow based on time-frequency near-infrared brain imaging, belonging to the field of healthcare informatics technology. It converts light intensity data obtained from time-frequency near-infrared brain imaging into electrical data, and calculates and post-processes the electrical data using a modified Lambert-Beer law to generate a relative blood flow distribution chromatogram of the brain region under test. Simultaneously with the calculation and generation of the relative blood flow distribution chromatogram, a mental health assessment is conducted on the subject, and the relative blood flow distribution chromatogram is used to assist in evaluating the subject's mental health assessment results. This invention employs a novel multi-ring regular hexagonal honeycomb mesh structure construction method and sets a corresponding optical pole arrangement, significantly increasing the number of effective channels for calculation per unit area. Based on the modified Lambert-Beer law, it considers individual influencing factors, making the information expressed by the generated relative blood flow distribution chromatogram more accurate and comprehensive.