Abstract: A method for preparing a cementing material by sintering and activating coal gangue is provided. The method includes the following steps: (1) crushing coarse-grained coal gangue to predetermined particle size; (2) fully and evenly mixing the crushed coal gangue, the composite additive and water according to a set proportion, and granulating the obtained mixture; (3) distributing, igniting and exhausting the granulated pellets in the sintering machine to obtain decarburized coal gangue sinter; (4) cooling the decarburized coal gangue sinter in a cooler; (5) crushing and finely grinding the cooled coal gangue sinter to obtain a coal gangue active mixture; and (6) mixing the coal gangue active admixture, the fly ash, the quicklime and the gypsum according to a predetermined ratio, and then carrying out injection moulding, mold removal and curing to obtain the coal gangue-based cementitious material.

Abstract: A method and system for providing tone detection and modification for a content segment may include receiving a request to detect a tone for the content segment, inputting the content segment into a first machine-learning (ML) model to detect the tone for the content segment, obtaining the detected tone as a first output from the first ML model, inputting the content segment into a second ML model for modifying the tone from the detected tone to a modified tone, obtaining at least one rephrased content segment as a second output from the second ML model, the rephrased content segment modifying the tone of the content segment from the detected tone to the modified tone, and providing at least one of the detected tone or the at least one rephrased content segment for display to a user.