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The low viscosity of soundless cracking demolition agent (SCDA) slurries makes them difficult to use on rock and concrete breakage in horizontal and up holes, or wet holes. In this paper, self-swelling tablet cartridges are developed by use of additives including adhesive, wetting agent, water absorbent, and activator to SCDA powder through newly developed production technologies. The dosages of adhesive and wetting agent were optimized in the process of powder granulation. Their optimal addition amounts are 3.17% and 11.81%. The self-swelling tablet (SST) experiments and optimization tests show the hardness of SST improved with an increase in pressure and mold filling height. Subsequently, laboratory tests were conducted to determine the influence of the contents of water absorbent and activator on the SST water absorption, reaction temperature, and expansion pressure. The water absorption of SST was found to improve with an increase in water absorbent amount and particle size of the granules. The optimum dosage of the water absorbent is 10%. Based on the laboratory experiments, the optimum amount of additives in the SST is 5% for its best performance. The production of SST cartridges is in a safer and healthier environment compared to SCDA powder cartridges, and its production can be automated to reduce labour cost. Finally, the introduction of SST cartridges expands the scope of application of the SCDA to up holes, horizonal holes, and wet holes.

Against the background that the top-level semantic framework of Chinese traditional culture is not comprehensive and unified, this study aims to preserve and disseminate cultural heritage information about Chinese traditional culture through the development of a domain ontology which is constructed from ancient books. A combination of top-down and bottom-up approaches was used to construct the ontology for Chinese traditional culture (CTCO). An investigation of historians' needs, and LDA topic clustering model were conducted, understanding the specific needs of historians, collecting the topic, concepts and relationships. CIDOC CRM was reused to construct the basic framework of CTCO. Ontology structure and function were adopted to evaluate the effectiveness of CTCO. Evaluation results show that the ontology meets all the quality criteria of OntoMetrics, and the experts agreed on content representation (average score = 4.30). CTCO contributes to the organization of traditional Chinese culture and the construction of related databases. The study also forms a common path and puts forward proposals for the construction of domain ontology, which has great social relevance. [ABSTRACT FROM AUTHOR]