Abstract: A data processing method for an analogue modelling experiment of a hypergravity geological structure includes steps of: performing two-dimensional photographing and three-dimensional elevation scanning with an analogue modelling experiment device with a curved model surface for the hypergravity geological structure, so as to collect initial elevation data and initial velocity field data; and correcting the initial elevation data and the initial velocity field data to obtain corrected elevation data and corrected velocity field data. The data processing method can realize orthographic correction and three-dimensional projection transformation of initial elevation data, as well as orthographic correction and two-dimensional projection transformation of initial velocity field data, which can more realistically and objectively reflect the experimental phenomenon, which is conducive to truly expressing the experimental results and facilitates the analogy analysis with the actual geological prototype.

Abstract: Disclosed herein is a method of enhancing RAA isothermal amplification sensitivity using magnetic beads and applications in nucleic acid analysis and detection and medical diagnosis, belonging to the biomedical engineering field, comprising: (1) material selection of magnetic beads, (2) optimization of diameter of magnetic beads, (3) optimization of mixing time of magnetic beads, and (4) sensitivity detection method of magnetic beads for RAA isothermal detection, wherein the material of magnetic bead is steel bead, the diameter of the magnetic bead is 1.5 mm, the mixing time of the magnetic bead is 30 s, and the detection method of isothermal RAA results includes agarose gel and fluorescence detection. Under this condition, the sensitivity of magnetic beads for RAA isothermal amplification is increased by 10 times compared to that without adding magnetic beads, and increased by 100 times compared to that of other types of fluorescence detectors.

Abstract: The present invention provides a database access method, where the method includes the following steps: receiving an access request input by a client, where the access request includes at least one command statement; performing rule matching between the command statement included in the access request and a rule in a preset rule set, and performing transformation processing on a statement that is included in the access request and that matches the rule, so as to generate a sinking statement that satisfies an execution requirement of a data source, where the sinking statement is a statement that is delivered to a database and executed by the data source; and transmitting the sinking statement to the database to which the sinking statement points. The present invention further provides a database access apparatus and a database system to which the foregoing method is applied.

Abstract: The present invention provides a database access method, where the method includes the following steps: receiving an access request input by a client, where the access request includes at least one command statement; performing rule matching between the command statement included in the access request and a rule in a preset rule set, and performing transformation processing on a statement that is included in the access request and that matches the rule, so as to generate a sinking statement that satisfies an execution requirement of a data source, where the sinking statement is a statement that is delivered to a database and executed by the data source; and transmitting the sinking statement to the database to which the sinking statement points. The present invention further provides a database access apparatus and a database system to which the foregoing method is applied.