Abstract: A topology control system and a corresponding topology control method for dynamic network is provided. The topology control system for dynamic network includes a sensing module, a data processing module, a data judgment module, a communication module and a central module. The sensing module collects the data of the surrounding nodes, and transmits it to the data processing module for caching, and then selects the cluster head of the current node according to the data, and then transmits it to the data judgment module. After the data judgment module checks the cluster head qualified, the communication module is responsible for wireless transmission of cluster head information to the central module. The central module collects the data of all nodes in the network and transmits the results to the client. It can be used for topology control of the dynamic network.

Abstract: It discloses an application of a fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands. The fermentation broth of Potamogeton crispus is prepared by the following method: collecting, draining off and grinding the Potamogeton crispuses, then, placing the grinded Potamogeton crispuses into a fermentation tank, mixing them with domesticated fermented sludge, and then adding water and fermenting the mixed liquor at a constant temperature, removing the residue of the Potamogeton crispuses, and obtaining the prepared fermentation broth of Potamogeton crispus. The present invention also discloses an application of the fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands.

Abstract: It discloses an application of a fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands. The fermentation broth of Potamogeton crispus is prepared by the following method: collecting, draining off and grinding the Potamogeton crispuses, then, placing the grinded Potamogeton crispuses into a fermentation tank, mixing them with domesticated fermented sludge, and then adding water and fermenting the mixed liquor at a constant temperature, removing the residue of the Potamogeton crispuses, and obtaining the prepared fermentation broth of Potamogeton crispus. The present invention also discloses an application of the fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands.

Abstract: A method for identifying a nano textile, including: (1) determining whether a textile belongs to a woven fabric or a non-woven fabric by appearance; and (2) when the textile is a woven fabric, determining whether the woven fabric is a nano textile according to the surface grains of the woven fabric and a finishing material for the woven fabric; or when the textile is a non-woven fabric, determining whether the non-woven fabric is a nano textile according to the fiber diameter and a fused material of the non-woven fabric.

Abstract: A method for identifying a nano textile, including: (1) determining whether a textile belongs to a woven fabric or a non-woven fabric by appearance; and (2) when the textile is a woven fabric, determining whether the woven fabric is a nano textile according to the surface grains of the woven fabric and a finishing material for the woven fabric; or when the textile is a non-woven fabric, determining whether the non-woven fabric is a nano textile according to the fiber diameter and a fused material of the non-woven fabric.