Abstract: Provided are a method, device, and system for detecting soil organic matter, which belong to the technical field of soil detection. The method includes: determining a total carbon content in a soil to be tested according to an atomic emission spectrum of a first pressed soil sample; determining an inorganic carbon content in the soil to be tested according to a molecular absorption spectrum of a second pressed soil sample; and finally determining an organic matter content in the soil to be tested according to the total carbon content and the inorganic carbon content.

Abstract: The present disclosure relates to a combined pharmaceutical composition of a CDK4/6 inhibitor and an aromatase inhibitor, and the use thereof in the treatment of breast cancer. Compared with separate administration of any agent in the composition, the combined pharmaceutical composition of the present disclosure yields a better therapeutic effect on slowing tumor growth or even eliminating tumors.

Abstract: Aspects of the present disclosure describe distributed fiber optic sensing/distributed acoustic sensing (DFOS/DAS) systems, methods, and structures that advantageously provide rainfall intensity measurements along an entire length of a fiber optic sensor. using existing telecommunications optical fiber—which may be part of a multi-fiber, fiber optic cable—that may simultaneously carry live telecommunications traffic. The DFOS/DAS fiber optic sensing is used to obtain vibration and/or sound data from which rainfall intensity measurements may be made along the entire length of the DFOS/DAS fiber optic sensor.