BACKGROUND In pressure support ventilation (PSV), a non-variable level of pressure support is delivered by the ventilator when triggered by the patient. In contrast, variable PSV delivers a level of pressure support that varies in a random fashion, introducing more physiological variability to the respiratory pattern. Experimental studies show that variable PSV improves gas exchange, reduces lu...

Taxonomies of concepts are important across many application domains, for instance online shopping portals use catalogs to help users navigate and search for products. Task-dependent taxonomies, e.g., adapting the taxonomy to a specific cohort of users, can greatly improve the effectiveness of navigation and search. However, taxonomies are usually created by domain experts and hence designing t...

The X-ray microtomography (XMT) pioneered by Elliot and Dover in 1982 [1] was developed and used in many studies [2] until now. While XMT is becoming a common technique in the laboratory studies, a standard for quantitative determination of the absolute material density distribution has not been attained. To date, a quantitative method of bone measurement on the microstructural level is not com...

To improve the speed regulating characteristics of continuously variable transmission for agricultural machinery, in order to meet engineering and technical requirements precision agriculture intelligent agriculture, paper researches proposes a method combining analysis characteristics, regression-based correction, improved particle swarm optimization (I-PSO) algorithm. First, analyzes degree d...