2results about How to "Low ecological impact" patented technology

This invention provides a method for controlling Spartina alterniflora and promoting natural mangrove restoration based on rolling mulching and in-situ mud slurry, belonging to the field of ecological control technology. The method involves mechanically rolling Spartina alterniflora to flatten most of it and press it into the tidal flat soil. Then, a biodegradable mulch film is laid on top, and mud slurry is extracted and applied to form a mud slurry cover layer. A mangrove seed interception and planting device is then installed on the mud slurry cover layer to prevent mangrove seeds from growing naturally, thereby reducing the cost of Spartina alterniflora control and improving the efficiency of Spartina alterniflora control.

The application discloses a medical instrument biofilm prevention system based on low-energy surface acoustic waves and relates to the technical field of medical instrument protection. The technical scheme is as follows: a piezoelectric vibration module is attached to or integrated with the wall part of an indwelling medical instrument, vibration is uniformly transmitted to the whole surface of the instrument, a vibration transmission module for exciting composite surface acoustic waves is arranged, a drive control module for outputting rectangular electric pulses and adjusting the power density of the instrument surface to be accurately maintained is arranged, and a power module is arranged. The application can reduce the biofilm load to 0.75-1.22 log 10 CFU / cm 2 At the same time, the urine sterility time is prolonged from 2 days to 9 days, and the infection time is delayed to the 7.3th day. The physical method adopted in the application is reversible, non-toxic and non-drug-inducing, is effective on a wide range of bacteria and fungi, does not cause tissue damage, and is suitable for catheters, central venous catheters and various indwelling instruments.