Results 51 to 60 of about 61,273 (209)

Age‐related model for estimating the symptomatic and asymptomatic transmissibility of COVID‐19 patients [PDF]

open access: yes, 2023
Estimation of age-dependent transmissibility of COVID-19 patients is critical for effective policymaking. Although the transmissibility of symptomatic cases has been extensively studied, asymptomatic infection is understudied due to limited data. Using a
Martinez, Leonardo   +9 more
core   +1 more source

Natural Frequency Transmissibility for Detection of Cracks in Horizontal Axis Wind Turbine Blades

open access: yesSensors
Defects on horizontal axis wind turbine blades are difficult to identify and monitor with conventional forms of non-destructive examination due to the blade’s large size and limited accessibility during continuous operation.
Rachel Henderson   +2 more
doaj   +1 more source

The effect of cubic damping on a base excited isolator: an experimental study for harmonic excitation [PDF]

open access: yes, 2013
An experimental study has been conducted to validate theoretical solutions for the response of a base excited single degree-of-freedom isolation system possessing pure cubic damping.
Ferguson, N.S.   +2 more
core  

Transmissibility Prediction: A Deep Learning Approach [PDF]

open access: yes, 2021
Dissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced AnalyticsTransmissibility is a very important issue in the study of fractured rocks, as it is directly related to the efficiency of drilling ...
Bayer, Biazi
core  

Comparative Pathogenicity and Transmissibility of the H7N9 Highly Pathogenic Avian Influenza Virus and the H7N9 Low Pathogenic Avian Influenza Virus in Chickens

open access: yesViruses, 2019
There were five outbreaks of H7N9 influenza virus in humans in China since it emerged in 2013, infecting >1000 people. The H7N9 low pathogenic influenza virus was inserted into four amino acids in the HA protein cleavage site to mutate into the H7N9 ...
Hao Yu   +9 more
doaj   +1 more source

Country differences in transmissibility, age distribution and case-fatality of SARS-CoV-2: a global ecological analysis

open access: yesInternational Journal of Infectious Diseases, 2022
Objectives The first COVID-19 pandemic waves in many low-income countries appeared milder than initially forecasted. We conducted a country-level ecological study to describe patterns in key SARS-CoV-2 outcomes by country and region and explore ...
Caroline Favas   +4 more
doaj   +1 more source

Factors affecting the dynamic response of the body and the vibration transmitted through seats [PDF]

open access: yes, 2010
The vibration transmitted through a seat is influenced by the dynamics of the seat and thedynamics of the occupant. The principal objective of this thesis is to understand how the dynamicsof the body and factors affecting the dynamics of the body ...
Toward, Martin G.R., Toward, Martin G R
core  

Design, Experiment, and Improvement of a Quasi-Zero-Stiffness Vibration Isolation System

open access: yesApplied Sciences, 2020
This paper proposes a new kind of quasi-zero-stiffness (QZS) isolation system that has the property of low-dynamic but high-static stiffness. The negative stiffness was produced using two magnetic rings, the magnetization of which is axial.
Shuai Wang   +4 more
doaj   +1 more source

Development of a vibration isolation system using an air suspension with automatic damping adjustment mechanism

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In this study, we develop a vibration isolation system using an air suspension with a variable length slit restriction, clarify its dynamic characteristics and build a system that automatically adjusts an equivalent damping coefficient and an equilibrium
Yuki TAKANAMI   +2 more
doaj   +1 more source

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