Abstract: A knowledge graph-driven groundwater-oriented method for building risk warning includes: extracting a relationship quadruple between groundwater level change and building structure change based on collected groundwater level data and building data; creating a cross-domain knowledge graph based on the relationship quadruple, and associating two different fields; updating the cross-domain knowledge graph in real time to realize the building risk warning caused by groundwater level changes. The risk warning is based on the causal relationship reflected in the factual data, making the risk warning more accurate, which can effectively solve the problem of the lack of risk warning system for buildings due to groundwater level changes in the related art.

Abstract: A knowledge graph-driven groundwater-oriented method for building risk warning includes: extracting a relationship quadruple between groundwater level change and building structure change based on collected groundwater level data and building data; creating a cross-domain knowledge graph based on the relationship quadruple, and associating two different fields; updating the cross-domain knowledge graph in real time to realize the building risk warning caused by groundwater level changes. The risk warning is based on the causal relationship reflected in the factual data, making the risk warning more accurate, which can effectively solve the problem of the lack of risk warning system for buildings due to groundwater level changes in the related art.

Abstract: The present invention discloses a stem cell culture medium and its applications as well as a stem cell culture method. The said stem cell culture medium contains no serum. The said stem cell culture medium contains amino acids, vitamins, salts, lipids, cytokines and protein polypeptides. The said stem cell culture medium is suitable for rapid culture of stem cells derived from human and mammalian tissues, including but not limited to, adipose mesenchymal stem cells, bone marrow mesenchymal stem cells and umbilical cord blood stem cells. The said culture medium can increase the proliferation speed of the stem cells 3-5 times, without any affects on their differentiation potentials. Comparing the said stem cell culture medium to a routine culture medium, the said culture medium is not only able to proliferate stem cells derived from different sources more rapidly and achieve more proliferation generations, but also keep their differentiation potentials well.

Abstract: The present invention discloses a stem cell culture medium and its applications as well as a stem cell culture method. The said stem cell culture medium contains no serum. The said stem cell culture medium contains amino acids, vitamins, salts, lipids, cytokines and protein polypeptides. The said stem cell culture medium is suitable for rapid culture of stem cells derived from human and mammalian tissues, including but not limited to, adipose mesenchymal stem cells, bone marrow mesenchymal stem cells and umbilical cord blood stem cells. The said culture medium can increase the proliferation speed of the stem cells 3-5 times, without any affects on their differentiation potentials. Comparing the said stem cell culture medium to a routine culture medium, the said culture medium is not only able to proliferate stem cells derived from different sources more rapidly and achieve more proliferation generations, but also keep their differentiation potentials well.