Abstract: The present disclosure provides an annular anchor installing instrument and an annular anchor installing method, relating to the technical field of ocean engineering. The annular anchor installing instrument includes an installation tube, a pump body assembly, a lifting portion and an installation portion. One end of the installation tube is provided with a cover body, and the other end of the installation tube is configured to be an open end for cooperating with the top of the annular anchor. The pump body assembly is arranged on the cover body, and used to vacuum the interior of the installation tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portions are removably arranged on the cover body, and used to connect with the hoist and the anchor chain of the annular anchor, respectively.

Abstract: The present disclosure discloses a method and apparatus for detecting security event, and a non-transitory computer-readable storage medium, and relates to the field of big data. The method includes: acquiring a time window, and acquiring log data, wherein the time window is a rolling window in a preset period; matching the log data with a security event model in each time window, so as to generate a matching result set in each time window, wherein the security event model is a model comprising a plurality of rule models for identifying whether the log data has an attack behavior; and generating security event data according to the matching result set, so as to restore an attack process according to the security event data.

Abstract: The present disclosure provides an annular anchor installing instrument and an annular anchor installing method, relating to the technical field of ocean engineering. The annular anchor installing instrument includes an installation tube, a pump body assembly, a lifting portion and an installation portion. One end of the installation tube is provided with a cover body, and the other end of the installation tube is configured to be an open end for cooperating with the top of the annular anchor. The pump body assembly is arranged on the cover body, and used to vacuum the interior of the installation tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portions are removably arranged on the cover body, and used to connect with the hoist and the anchor chain of the annular anchor, respectively.

Abstract: The present disclosure discloses a method and apparatus for detecting security event, and a non-transitory computer-readable storage medium, and relates to the field of big data. The method includes: acquiring a time window, and acquiring log data, wherein the time window is a rolling window in a preset period; matching the log data with a security event model in each time window, so as to generate a matching result set in each time window, wherein the security event model is a model comprising a plurality of rule models for identifying whether the log data has an attack behavior; and generating security event data according to the matching result set, so as to restore an attack process according to the security event data.

Abstract: The present invention discloses a liquid-driven nano-porous actuator and the application thereof, and belongs to the field of nano material actuators. According to the present invention, by changing the content of the liquid in the nano-porous material, the interface between the surface liquid of the nano-porous material and air is exchanged between flat and curved states, so as to change the compressive stress acting on the nano-porous material from the surface tension of the liquid and change the elastic deformation of the nano-porous material, thus driving the nano-porous material to contract and expand in a reversible manner and further realizing driving performance.

Abstract: The present invention discloses a liquid-driven nano-porous actuator and the application thereof, and belongs to the field of nano material actuators. According to the present invention, by changing the content of the liquid in the nano-porous material, the interface between the surface liquid of the nano-porous material and air is exchanged between flat and curved states, so as to change the compressive stress acting on the nano-porous material from the surface tension of the liquid and change the elastic deformation of the nano-porous material, thus driving the nano-porous material to contract and expand in a reversible manner and further realizing driving performance.