Abstract: The present disclosure discloses a novel assembled nuclear magnetic resonance (NMR) sample tube and an assembly method thereof. The structure includes a common NMR sample tube, a first open-top screw cap and a second open-top screw cap. The first screw cap is sleeved on the common NMR sample tube, and an open end of the first screw cap is tightly connected to an outer wall of the common NMR sample tube. The second screw cap is in threaded connection with the screw thread on the top of the short tube. A short tube is sleeved on the common NMR sample tube, and the screw thread at the bottom of the short tube is in threaded connection with the first screw cap. A silicone rubber septum is located between the open end of the second screw cap and the screw thread on the top of the short tube.

Abstract: A lifting container power generating device using a flexible guidance system includes a power source section, a power transmission section and an electrical section. The power source section includes a slide recess base electrically connected to a top portion of a flexible lifting container. A body is connected to the slide recess base through a linear bearing. A fixed roller and a sliding roller on the body are symmetrically disposed at two sides of a guide wire rope. Under the combined action of a preloaded spring and a tension spring, the fixed roller and the sliding roller jointly press tightly against the guide wire rope. The power transmission section includes an electromagnetic clutch axially connected to the fixed roller, and an electromagnetic clutch pulley connected to a power generator pulley via a V-belt. The power source section includes an electrical cabinet connected to the electromagnetic clutch, a power generator and a battery of the flexible lifting container.

Abstract: The present invention discloses a method for optimizing sensor network node location in a geological CO2 storage area. In the method, by analyzing data in a monitoring area, such as geological data, geographical data, and meteorological data, analyzing influence factors of a CO2 leakage event and determining a sensitivity partition, designing different coverage control schemes of monitoring sensor network nodes, or intensively or sparsely arranging sensor monitoring nodes, a coverage network is described and optimally expressed on the basis of Delaunay triangulation. In the method for optimizing sensor network node location in a geological carbon dioxide storage area, the arrangement density of wireless sensor network nodes can be dynamically adjusted according to geological and geographical features of a detection area, and the arrangement optimization of a dynamic monitoring sensor network for coal seam carbon dioxide injection area leakage can be realized.

Abstract: A lifting container power generating device using a flexible guidance system includes a power source section, a power transmission section and an electrical section. The power source section includes a slide recess base electrically connected to a top portion of a flexible lifting container. A body is connected to the slide recess base through a linear bearing. A fixed roller and a sliding roller on the body are symmetrically disposed at two sides of a guide wire rope. Under the combined action of a preloaded spring and a tension spring, the fixed roller and the sliding roller jointly press tightly against the guide wire rope. The power transmission section includes an electromagnetic clutch axially connected to the fixed roller, and an electromagnetic clutch pulley connected to a power generator pulley via a V-belt. The power source section includes an electrical cabinet connected to the electromagnetic clutch, a power generator and a battery of the flexible lifting container.

Abstract: An automatic handle assembly system for a paint brush, including a feeding device, a conveying device, a handle pushing device, a pneumatic system, and a control system. The feeding device is used for transporting a glue-filled paint brush head to an entrance of the conveying device. The conveying device is used for realizing transportation, pressing and precise positioning of the paint brush head. The handle pushing device is used for pushing a paint brush handle to precisely insert into the paint brush head. The feeding device, the conveying device, and the handle pushing device are all connected to the pneumatic system and the control system.

Abstract: An automatic handle assembly system for a paint brush, including a feeding device, a conveying device, a handle pushing device, a pneumatic system, and a control system. The feeding device is used for transporting a glue-filled paint brush head to an entrance of the conveying device. The conveying device is used for realizing transportation, pressing and precise positioning of the paint brush head. The handle pushing device is used for pushing a paint brush handle to precisely insert into the paint brush head. The feeding device, the conveying device, and the handle pushing device are all connected to the pneumatic system and the control system.