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2篇 您的检索式:作者名="Francesco Avossa"
    题名 作者 年代 出处 被引量
1Light Electrospun Polyvinylpyrrolidone Blanket for Low Frequencies Sound Absorption显示文摘Light polymeric soundproofing materials(density = 63 kg/m^3) of interest for the transportation industry were fabricated through electrospinning. Blankets of electrospun polyvinylpyrrolidone(average fiber diameter =(1.6 ± 0.5) or(2.8 ± 0.5) μm) were obtained by stacking disks of electrospun mats. The sound absorption coefficients were measured using the impedance tube instrument based on ASTM E1050 and ISO 10534-2. For a given set of disks(from a minimum of 6) the sound absorption coefficient changed with the frequency(in the range 200–1600 Hz) following a bell shape curve with a maximum(where the coefficient is greater than 0.9) that shifts to lower frequencies at higher piled disks number and greater fiber diameter. This work showed that electrospinning produced sound absorbers with reduced thickness(2–3 cm) and excellent sound-absorption properties in the low and medium frequency range.Joshua Avossa Francesco Brand Francesco Marulo Giuseppe Petrone Stefano Guido Giovanna Tomaiuolo Aniello Costantini 2018Chinese Journal of Polymer Science2018,36,12:2
2Health care service usage and costs for high-needs elderly patients with heart failure显示文摘Heart failure(HF)has been defined as global disease of pandemic proportions,since it affects around 26 million people worldwide.[1]According to a recent study,age is the most important factor influencing the prevalence of HF,as it is for most other chronic conditions.[2]This means that,with the predicted aging of the population(the proportion of the world’s population aged 60 years and over will nearly double from 2015 to 2050),[3]there will be a growth in the total burden of HF,and a rise in the number of comorbidities in HF patients.According to a recent study,almost 86%of adults with HF have two or more comorbid conditions.[4]Comorbidity,defined as the co-existence of one or more additional conditions in individuals with a specified index medical condition,[5]adds to the complexity of treating elderly patients with HF.Alessandra Buja Riccardo Caberlotto Carlo Pinato Giulia Grotto Maria Chiara Corti Francesco Avossa Elena Schievano Vincenzo Baldo 2020Journal of Geriatric Cardiology2020,17,9:1
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