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Objective:To summarize the methods and results of human motion intention recognition based on the surface electromyography. Methods:Literatures were retrieved and reviewed from the databases of PubMed, Web of Science, CNKI, Wanfang and VIP until December, 2020. The experimental researches about human motion intention recognition based on surface electromyography were summarized. Results:The methods of motion intention recognition were divided into three models: musculoskeletal model, traditional machine learning model and deep learning model. Conclusion:It is difficult to fully estimate human motion intention using surface electromyography in a single way. More researches are needed to develop more accurate and real-time human motion intention recognition methods.
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Objective To understand the infection status of soil-transmitted nematodes in Xinchang County,so as to offer the evidence for the formulation of control measures.Methods The infection of soil-transmitted nematodes in residents was in-vestigated by using the Kato-Katz method and cellophane anal swab.Results A total of 3 069 people were examined in 2009,2012 and 2017,of which 1 520 people were male and 61 people were infected,with the infection rate of 4.01％;1 549 were women and 54 people were infected,with the infection rate of 3.48％.The infection rates of soil-transmitted nematodes in 2009,2012 and 2017 were 4.60％,4.29％and 2.35％,respectively,and the total infection rates were decreased(Χ2= 7.151,P＜0.05).Conclusion The rate of soil-transmitted nematode infection in Xinchang County is declining,and it is at a low epidemic level.
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We studied the disinfection effect of a new ultraviolet (UV) sterilizer and its utilization on ultrasound probe surfaces. Carrier quantitative germicidal tests, simulated on-the-spot trials, and organic substance influence tests were used to carry out experimental observation. Artificially infected probes were disinfected using the sterilizer or a germicidal lamp for comparison. The total number and types of bacteria were determined and identified. Our results demonstrated the sterilizer had the best disinfection effect among three different disinfection methods in hospital. The sterilizer has been used in a hospital setting for 2 years with no notable damage to the ultrasound probe instrument. It has the advantages of fast disinfection, high disinfection effect, and good compatibility with the ultrasound instrument, worthy of being a promoted application in medical institutions.